View source for English verbs

{{Short description|Verbs in the English language}}
{{English grammar}}

[[Verb]]s constitute one of the main [[Part of speech|parts of speech]] (word classes) in the [[English language]]. Like other types of words in the language, '''English verbs''' are not heavily [[inflection|inflected]]. Most combinations of [[Grammatical tense|tense]], [[Grammatical aspect|aspect]], [[Grammatical mood|mood]] and [[Grammatical voice|voice]] are expressed [[periphrasis|periphrastically]], using constructions with [[auxiliary verb]]s.

Generally, the only inflected forms of an English verb are a third person singular [[present tense]] form ending in ''-s'', a [[past tense]] (also called [[preterite]]), a [[past participle]] (which may be the same as the past tense), and a form ending in ''[[-ing]]'' that serves as a [[present participle]] and [[gerund]]. Most verbs inflect in a simple [[regular verb|regular]] fashion, although there are about 200 [[English irregular verbs|irregular verbs]]; the irregularity in nearly all cases concerns the past tense and past participle forms. The [[copula (linguistics)|copula]] verb ''be'' has a larger number of different inflected forms, and is highly irregular.

Although many of the most commonly used verbs in English (and almost all the irregular verbs) come from [[Old English]], many others are taken from Latin or French. Nouns or adjectives can become verbs (see [[Conversion (word formation)]]). Adjectives like "separate" and "direct" thus became verbs, starting in the 16th century, and eventually it became standard practice to form verbs from Latin passive participles, even if the adjective didn't exist. Sometimes verbs were formed from Latin roots that were not verbs by adding "-ate" (such as "capacitate"), or from French words (such as "isolate" from French "isoler").<ref>Online Etymology Dictionary, entry [https://www.etymonline.com/word/-ate#etymonline_v_26661 -ate].</ref><ref>{{cite book |title=Oxford English Dictionary |page=742 |url=https://archive.org/details/oxfordenglishdic01oxfo/page/742/mode/2up?view=theater|date=1989 |publisher=Clarendon Press |edition=2|isbn=978-0-19-861213-1 }}</ref>

For details of the uses of particular verb tenses and other forms, see the article [[Uses of English verb forms]].

==Inflected forms==
{| class="wikitable floatright" border="1"
|+ Conjugation of ''have''
|-
! Person
! Singular
! Plural
|-
| ''First'' || style="text-align: center;" | '''I have''' || style="text-align: center;" | '''We have'''
|-
| ''Second'' || style="text-align: center;" | '''You have''' || style="text-align: center;" | '''You have'''
|-
| ''Third'' || style="text-align: center;" | '''It has''' || style="text-align: center;" | '''They have'''
|-
|}

===Principal parts===
A [[regular verb|regular]] English verb has only one [[principal parts|principal part]], from which all the forms of the verb can be derived. This is the base form or [[dictionary form]]. For example, from the base form ''exist'', all the inflected forms of the verb (''exist'', ''exists'', ''existed'', ''existing'') can be predictably derived. The base form is also called the bare [[infinitive]]; that is, the infinitive [[Uses of English verb forms#To-infinitive|without the ''to'']].

Most [[English irregular verbs|irregular verbs]] have three principal parts, since the [[simple past (English)|simple past]] and [[past participle]] are unpredictable. For example, the verb ''write'' has the principal parts ''write'' (base form), ''wrote'' (past), and ''written'' (past participle); the remaining inflected forms (''writes'', ''writing'') are derived regularly from the base form. Some irregular verbs have identical past tense and past participle forms (as the regular verbs do), as with ''send–sent–sent''.

The infinitive, simple past and past participle are sometimes referred to as First (V1), Second (V2) and Third (V3) form of a verb, respectively. This naming convention has all but disappeared from American and British usage, but still can be found in textbooks and teaching materials used in other countries.<ref>{{cite web|url=http://www.ospolje.si/uploads/5/0/8/6/5086774/year_7_-_english_irregular_verbs.pdf|title=English irregular verbs | website=Prijazna šola}}</ref><ref>{{cite web|url=https://learnenglishurdu.com/1000-forms-of-verbs/|title=1000 Forms of Verbs – 1st form, 2nd form, 3rd form| website=Learn English Urdu | date=28 March 2018 }}</ref><ref>{{cite web|url=https://www.learnesl.net/regular-and-irregular-verbs/|title=How to Change a Verb Into 2nd and 3rd Form?| website=Learn ESL | date=3 March 2016 }}</ref><ref>{{cite web|url=https://www.englishclub.com/grammar/verb-forms.htm|title=Verb Forms | website=EnglishClub}}</ref>

Some speakers have only two forms, collapsing the distinction between V2 and V3, though this is considered non-standard. For most verbs the forms are V1 and V2 (''have they went yet?'', with 'gone' never being used, or ''a corporate-ran company'' rather than ''corporate-run''), but for a few verbs they are V1 and V3 (''I seen it, he done it'', with 'saw' and 'did' not being used).

The verbs ''do'', ''say'' and ''have'' additionally have irregular third person singular present tense forms (see [[#Third person singular present|below]]). The [[copula (linguistics)|copula]]r verb ''be'' is highly irregular, with the forms ''be'', ''am'', ''is'', ''are'', ''was'', ''were'', ''been'' and ''being''. On the other hand, [[modal verb]]s (such as ''can'' and ''must'') are [[defective verb]]s, being used only in a limited number of forms. For details on the forms of verbs of these types, see {{slink||Copular, auxiliary and defective verbs}} below.

=== Base form ===
The base form or ''plain form'' of an English verb is not marked by any inflectional ending.

Certain derivational [[suffix]]es are frequently used to form verbs, such as ''-en'' (''sharpen''), ''-ate'' (''formulate''), ''-fy'' (''electrify''), and ''-ise/ize'' (''realise/realize''), but verbs with those suffixes are nonetheless considered to be base-form verbs. Also, many base-form verbs contain [[prefix]]es, such ''un-'' (''unmask''), ''out-'' (''outlast''), ''over-'' (''overtake''), and ''under-'' (''undervalue'').<ref name=carter-mccarthy-p301>{{Harvnb|Carter|McCarthy|2006|p=301}}</ref> Some verbs are formed from nouns and [[English adjectives|adjectives]] by [[Conversion (word formation)|conversion]], as with the verbs ''snare'', ''nose'', ''dry'', and ''calm''.

The base form is used in the following ways:
*It serves as the bare [[infinitive]], and is used in the ''to''-infinitive (e.g. ''to write''); for uses see {{slink||Non-finite forms}} below.
*It serves as the [[simple present]] tense, except in the third person singular: ''I/you/we/they '''write''' regularly'' (and except for the [[Irregular verb|highly irregular]] ''to be'').
*It is used as an [[imperative mood|imperative]]: '''''Write''' these words.''
*It is used as a [[English subjunctive|subjunctive]]: ''I suggested that he '''write''' a novel.''
For the verb ''be'', which uses different forms for the simple present, and modal verbs, which are not used in the infinitive, imperative or subjunctive, see {{slink||Copular, auxiliary and defective verbs}} below.

=== Third person singular present ===
Almost all verbs have a third person singular present indicative form with the [[Affix|suffix]] ''-[e]s''. In terms of [[English orthography|spelling]], it is formed in most cases by adding ''-s'' to the verb's base form: ''run'' → ''runs''. However if the base form ends in one of the [[sibilant]] sounds ({{IPAslink|s}}, {{IPAslink|z}}, {{IPAslink|ʃ}}, {{IPAslink|ʒ}}, {{IPAslink|tʃ}}, {{IPAslink|dʒ}}) and its spelling does not end in a [[silent E|silent ''e'']], then ''-es'' is added: ''buzz'' → ''buzzes''; ''catch'' → ''catches''. Verbs ending in a consonant plus ''o'' also typically add ''-es'': ''veto'' → ''vetoes''. Verbs ending in a consonant plus ''y'' add ''-es'' after changing the ''y'' to an ''i'': ''cry'' → ''cries''.

In terms of [[English phonology|pronunciation]], the ending is pronounced as {{IPAc-en|ᵻ|z}} after [[sibilant]]s (as in ''lurches''), as {{IPAc-en|s}} after [[voiceless consonant]]s other than sibilants (as in ''makes''), and as {{IPAc-en|z}} otherwise (as in ''adds''). These are the same rules that apply to the pronunciation of the regular noun [[English plural|plural suffix]] ''-[e]s'' and the [[English possessive|possessive]] ''-'s''. The spelling rules given above are also very similar to those for the plural of nouns.

The third person singular present of ''have'' is irregular: ''has'' {{IPA|/hæz/}} (with the [[weak and strong forms in English|weak form]] {{IPA|/həz/}} when used as an auxiliary, also [[contraction (linguistics)|contractable]] to ''-'s''). The verbs ''do'' and ''say'' also have irregular forms, ''does'' {{IPA|/dʌz/}} and ''says'' {{IPA|/sɛz/}}, which however look like regular forms in writing.

For the verb ''be'', modal verbs and other auxiliaries, see {{slink||Copular, auxiliary and defective verbs}} below.

The form described in this section is used with third person singular subjects as the [[simple present]] tense (in the [[indicative mood]]): ''He '''writes''' novels all the time.'' (This tense has other uses besides referring to present time; for example, in ''I'll be glad if he writes'', it refers to future time.)

=== Past tense ===
{{Main article|Simple past}}
The past tense, or [[preterite]], may be formed regularly or irregularly.

With regular verbs, the past tense is formed (in terms of spelling) by adding ''-ed'' to the base form (''play'' → ''played''). Normal rules for adding suffixes beginning with a vowel apply: If the base form ends in ''e'' then only ''d'' is added (''like'' → ''liked''); if the base form ends in a consonant followed by ''y'' then the ''y'' is changed to ''i'' before adding the ending (''try'' → ''tried''; an exception is the verb ''[[wikt:sky#Verb|sky]]'' (a ball), which can form ''skied'' or ''skyed''). Three words ending in ''-ay'' (''lay'', ''pay'' and ''say'') change ''y'' to ''i'' and add ''-d'' (''laid'', ''paid'', ''said'').

Various rules apply for [[American and British English spelling differences#Doubled consonants|doubling final consonants]]. If the base form ends in a single vowel followed by a single consonant (except ''h'', silent ''t'', {{fact|date=October 2020}} ''w'', ''x'' or ''y''), then unless the final syllable is completely [[Stress (linguistics)|unstressed]] the consonant is doubled before adding the ''-ed'' (''ship'' → ''shipped'', but ''fathom'' → ''fathomed''). In general this is considered something to keep the vowel before the final consonant short (i.e. if the word were spelled ''shiped'' it would have a long i.) However, there are 2 words, ''control'' and ''patrol'', which follow this rule even though the vowel before the final consonant is long. For most base forms ending in ''c'', the doubled form used is ''ck'', used regardless of stress (''panic'' → ''panicked''; exceptions include ''zinc'' → ''zincked'' or ''zinced'', ''arc'' → usually ''arced'', ''spec'' → ''specced'' or ''spec'ed'', ''sync'' → sometimes ''synched''). In [[British English]], the doubling of ''l'' occurs regardless of stress (''travel'' → ''travelled''; but ''paralleled'' is an exception), and when two separately pronounced vowels precede the ''l'' (''dial'' → ''dialled'', ''fuel'' →  ''fuelled''). If the final syllable has some partial stress, especially for compound words, the consonant is usually doubled: ''backflip'' → ''backflipped'', ''hobnob'' → ''hobnobbed'', ''kidnap'' →  ''kidnapped'' etc. In some cases both alternatives are acceptable, e.g. ''dialog''† → ''dialogued'' or ''dialogged''†, ''hiccup'' → ''hiccupped'' or ''hiccuped'', ''program'' → ''programed''† or ''programmed''. However ''catalog''† → ''cataloged''†, ''pyramid'' →  ''pyramided'', ''format'' →  ''formatted'' (but ''combat'' →  ''combat(t)ed''). Other variations not entirely consistent with these rules include ''bus'' → ''bused''† or ''bussed'', ''bias'' →  ''biased'' or ''biassed''† and ''focus'' → ''focused'' or ''focussed''. (The forms marked † are not used in British English, and the doubled consonant is not used for many words of non-Anglo-Saxon origin.) {{example needed|date=June 2025}}

The pronunciation of the past tense ending follows similar rules to those for the third person present tense ending described above: if the base form ends in {{IPA|/t/}} or {{IPA|/d/}} then a new syllable {{IPA|/ɪd/}} or {{IPA|/əd/}} is added (as in ''drifted'', ''exceeded''); if the base form ends in an [[unvoiced consonant]] sound other than {{IPA|/t/}} then the ending is pronounced {{IPA|/t/}} (as in ''capped'', ''passed''); otherwise the ending is pronounced {{IPA|/d/}} (as in ''buzzed'', ''tangoed''). Consequently, in the 17th and 18th centuries, the latter two pronunciations were routinely spelled ''-'d'', but ''-ed'' was later restored.

For the past tense of irregular verbs, see [[English irregular verbs]]. Many of these can be classed as [[Germanic strong verb]]s, such as ''sing'' (past ''sang''), while others are weak verbs with irregularly pronounced or irregularly spelt past forms, such as ''say'' (past tense ''said'' {{IPA|/sɛd/}}).

The verb ''be'' has two past tense forms: ''was'' (first and third person singular) and ''were'' (plural and second person).

The past tense (preterite) form is used in what is called the [[simple past]], in sentences such as ''We '''lit''' the fire'' and ''He '''liked''' to dance''. One of the uses of this tense is to refer not to a past situation, but to a hypothetical (present or future) situation in a [[dependent clause]]: ''If I '''knew''' that, I wouldn't have to ask.'' This is sometimes called the "past subjunctive", particularly in the case of ''were'', which can replace ''was'' in such sentences; see [[English subjunctive]].

=== Past participle ===
The [[past participle]] of regular verbs is identical to the preterite (past tense) form, described in the previous section.

For irregular verbs, see [[English irregular verbs]]. Some of these have different past tense and past participle forms (like ''sing–sang–sung''); others have the same form for both (like ''make–made–made''). In some cases the past tense is regular but the past participle is not, as with ''show–showed–shown''.

For uses of the past participle, see {{slink||Non-finite forms}} below.

=== Present participle ===
The [[present participle]] form, which is also used for the [[gerund]], is formed by adding the suffix ''[[-ing]]'' to the base form: ''go'' → ''going''. A final [[silent E|silent ''e'']] is dropped (''believe'' → ''believing''); final ''ie'' changes to ''y'' (''lie'' → ''lying''), and consonant doubling applies as for the past tense (see [[#Past tense|above]]): ''run'' → ''running'', ''panic'' → ''panicking''.

Exceptions include forms such as ''singeing'', ''dyeing'', ''ageing'', ''rueing'', ''cacheing'' and ''whingeing'', where the ''e'' may be retained to avoid confusion with otherwise identical words (e.g. ''singing''), to clarify pronunciation (for example to show that a word has a soft ''[[g]]'' or ''ch''), or for aesthetic reasons.

In standard English the ending is pronounced {{IPA|/ɪŋ/}}, although in many regional dialects the final consonant sound is pronounced {{IPA|/n/}}, sometimes represented in [[eye dialect]] by spellings such as ''huntin''' (see [[G-dropping|''g''-dropping]]).

For uses of the present participle and gerund, see {{slink||Non-finite forms}} below.

===Copular, auxiliary and defective verbs===
The [[copular verb]] ''be'' has multiple irregular forms in the present tense: ''am'' for first person singular (which together with the subject pronoun is often [[English contractions|contracted]] to ''I'm''), ''is'' for third person singular (often contracted to'' 's''), and ''are'' for plural and second person (often contracted to'' 're'' chiefly after the pronouns ''you'', ''we'', ''they''). It also has two past tense forms: ''was'' for first and third person singular, and ''were'' for plural and second person (also used as a past subjunctive with all persons; see [[English subjunctive]]). It has the following negative forms: third person singular present ''isn't'', other present ''aren't'' (including first person for the question ''aren't I''), first and third person singular past ''wasn't'', and other past ''weren't''.<ref>{{Cite book |last1=Huddleston |first1=Rodney |title=The Cambridge Grammar of the English Language |last2=Pullum |first2=Geoffrey K. |publisher=[[Cambridge University Press]] |year=2002 |location=Cambridge |pages=91, 113–114}}</ref> The past participle is ''been'', and the present participle and gerund is the regular ''being''. The base form ''be'' is used regularly as an infinitive, imperative and (present) subjunctive. For archaic forms, see the next section.

English has a number of [[English modal auxiliary verbs|modal auxiliary verbs]] which are defective. These verbs mostly have only positive and negative present and past tense forms ''can''/''can't''/''cannot'' and ''could''/''couldn't'', ''may'' and ''might''/''mightn't'', ''shall''/''shan't'' and ''should''/''shouldn't'', ''will''/''won't'' and ''would''/''wouldn't'', as well as ''need''/''needn't''.  ''Ought''  and ''must'' are also defective and have only a positive and negative form. In some dialects, ''dare'' also has a negative form.<ref>{{Cite book |last1=Huddleston |first1=Rodney |title=The Cambridge Grammar of the English Language |last2=Pullum |first2=Geoffrey K. |publisher=[[Cambridge University Press]] |year=2002 |location=Cambridge |pages=75, 85}}</ref> 

Other verbs used as [[auxiliary verb|auxiliaries]] include ''have'', chiefly in perfect constructions (the forms ''has'' {{IPA|/həz/}}, ''have'' and ''had'' can contract to'' 's'','' 've'' and'' 'd''); ''do'' (''does'', ''did'') in emphatic, inverted and negated constructions (see [[do-support|''do''-support]]).

For more detail of the above, including contractions of negated forms (''isn't'', ''won't'', etc.), see [[English auxiliaries and contractions]].

Another example of a [[defective verb]] is ''beware'', which is used only in those forms in which ''be'' remains unchanged, namely the infinitive, subjunctive and imperative.

=== Archaic forms ===
{| class="wikitable floatright" border="1"
|+ Archaic conjugation of ''have''
|-
! Person
! Singular
! Plural
|-
| ''First'' || style="text-align: center;" | '''I have''' || style="text-align: center;" | '''We have'''
|-
| ''Second'' || style="text-align: center;" | '''Thou hast''' || style="text-align: center;" | '''Ye have'''
|-
| ''Third'' || style="text-align: center;" | '''It hath''' || style="text-align: center;" | '''They have'''
|-
|}

Formerly, particularly in the [[Old English]] period, the English language had a far greater degree of verb inflection than it does now (some other [[Germanic languages]] retain a greater variety of inflected forms than English does). Some of the forms used in [[Early Modern English]] have now fallen out of use, but are still encountered in old writers and texts (e.g. [[Shakespeare]], the [[King James Bible]]) and in [[archaism]]s.

One such form was the third person singular form with the suffix ''-eth'' {{IPA|[əθ]}}, pronounced as a full syllable. This was used in some dialects rather than the modern ''-s'', e.g. ''he maketh'' ("he makes"), ''he runneth'' ("he runs"), ''he goeth'' ("he goes").  In some verbs, a shortened form ''-th'' appears: ''he hath'' ("he has"), ''he doth'' ("he does"; pronounced as if written ''duth''), ''he saith'' or ''he sayeth'' ("he says"). The forms ''hath'' and ''doth'' are found in some proverbs ("[[Hell hath no fury like a woman scorned]]", "[[The lady doth protest too much]]").

Another set of forms are associated with the archaic second person singular pronoun ''[[thou]]'', which often have the ending ''-est'', pronounced as a full syllable, e.g. ''thou makest'' ("you make"), ''thou leadest'' ("you lead"). In some verbs, a shortened form ''-st'' appears: ''thou hast'' ("you have"), ''thou dost'' ("you do"; rhymes with ''must''). In the case of the verb ''be'', such forms included ''art'' (present tense), ''wast'' (past), ''wert'' (past subjunctive) and ''beest'' (present subjunctive; pronounced as two syllables). In all other verbs, the past tense is formed by the base past tense form of the word (e.g. ''had'', ''did'', ''listened'') plus''-'st'', not pronounced as a full syllable, e.g. ''thou had'st'' ("you had"), ''thou did'st'' ("you did"), ''thou listened'st'' ("you listened"). Modal verbs except ''must'' also have ''-t'' or ''-st'' added to their form, e.g. ''thou canst'' ("you can"), ''thou wilt'' ("you will"), ''thou wouldst'' ("you would"), ''thou mightst'' ("you might"), except ''may'', which is ''thou mayest'' ("you may").

For example, several such forms (as well as other archaic forms such as ''yea'' for "yes", ''thy'' for "your", and ''mine enemies'' for "my enemies") appear in [[Psalm 23]] from the [[King James Bible]]:

: The LORD is my shepherd; I shall not want.
: He maketh me to lie down in green pastures: he leadeth me beside the still waters.
: He restoreth my soul: he leadeth me in the paths of righteousness for his name's sake.
: Yea, though I walk through the [[Valley of the Shadow of Death (disambiguation)|valley of the shadow of death]], I will fear no evil: for thou art with me; thy rod and thy staff they comfort me.
: Thou preparest a table before me in the presence of mine enemies: thou anointest my head with oil; [[my cup runneth over]].
: Surely goodness and mercy shall follow me all the days of my life: and I will dwell in the house of the LORD for ever.

For more information see [[Old English verb]]s, [[English subjunctive]], and [[Indo-European copula]] (for the history of the verb ''be'').

==Syntactic constructions==

===Expressing tenses, aspects and moods===
Besides the synthetic ([[inflection|inflected]]) forms described above, there are a number of [[periphrastic]] (multi-word) constructions with verb forms that serve to express tensed, aspectual or modal meanings; these constructions are commonly described as representing certain verb tenses or aspects (in [[English language teaching]] they are often simply called tenses). For the usage of these forms, see {{slink||Use of verb forms}} below. More detail can be found in the article [[Uses of English verb forms]].

====Progressive====
The [[progressive aspect|progressive]] (or continuous) aspect is expressed with a form of ''be'' together with the present participle of the verb. Thus [[present progressive]] (present continuous) constructions take forms like ''am writing'', ''is writing'', ''are writing'', while the [[past progressive]] (past continuous, also called ''[[imperfect]]'') forms are ''was writing'', ''were writing''. There is a progressive infinitive ''(to) be writing'' and a progressive [[English subjunctive|subjunctive]] ''be writing''. Other progressive forms, made with compound forms of ''be'', are described below.

====Perfect====
The [[perfect aspect]] is expressed with a form of the auxiliary ''have'' together with the past participle of the verb. Thus the [[present perfect]] is ''have written'' or ''has written'', and the [[past perfect]] (pluperfect) is ''had written''. The perfect can combine with the progressive aspect (see above) to produce the [[present perfect progressive]] (continuous) ''have/has been writing'' and the [[past perfect progressive]] (continuous) ''had been writing''. There is a perfect infinitive ''(to) have written'' and a perfect progressive infinitive ''(to) have been writing'', and corresponding present participle/gerund forms ''having written'' and ''having been writing''. A perfect [[English subjunctive|subjunctive]] (''have written'') is also sometimes used. Future and conditional perfect forms are given below.

====Future and conditional====
What is often called the [[future tense]] of English is formed using the auxiliary ''will''. The simple future is ''will write'', the future progressive (continuous) is ''will be writing'', the [[future perfect]] is ''will have written'', and the future perfect progressive (continuous) is ''will have been writing''. Traditionally (though now usually in formal English only) ''shall'' is used rather than ''will'' in the first person singular and plural; see [[shall and will|''shall'' and ''will'']].

The [[conditional mood|conditional]], or "[[future-in-the-past]]", forms are made analogously to these future forms, using ''would'' (and ''should'') in place of ''will'' (and ''shall'').

==== Imperative ====
In the second person, the [[imperative mood]] is normally expressed with the base form of the verb but without a subject: ''Take this outside! Be good!'' It is possible to add the second person pronoun ''you'' for emphasis: ''You be good!'' The first person plural is normally expressed with the contraction ''let's'' (let us) and the base form.

More details can be found in the article [[imperative mood]].

===Expressing passive voice===
The [[passive voice]] in English is normally expressed with a form of the copula verb ''be'' (or sometimes ''get'') together with the past participle of the main verb. In this context ''be'' is not a stative verb, so it may occur in progressive forms. Examples:
*''The house '''was built''' last year.''
*''The house '''is being built''' at the moment.''
*''The house '''will be built''' by our firm.'' (a prepositional phrase with ''by'' expresses the performer of the action)
*''I '''was given''' a blueprint.'' (here the subject of the passive corresponds to the indirect object of the active)
*''He '''was said''' to know the house's dimensions.'' (special construction related to [[indirect speech]])

For details, see [[English passive voice]].

===Questions, negation, inversion and emphasis===
Questions are formed by [[subject–auxiliary inversion]] (unless the interrogative word is part of the subject). If there is otherwise no auxiliary, the verb ''do'' (''does'', ''did'') is used as an auxiliary, enabling the inversion. This also applies to negation: the negating word ''not'' must follow an auxiliary, so ''do'' is used if there is no other auxiliary.

Inversion is also required in certain other types of sentences, mainly after negative adverbial phrases; here too ''do'' is used if there is no other auxiliary.

The construction with ''do'' as auxiliary is also used to enable emphasis to be added to a sentence.

For details of the above constructions, see [[do-support|''do''-support]].

==Use of verb forms==
This section describes how the verb forms introduced in the preceding sections are used. More detail can be found in the article [[Uses of English verb forms]] and in the articles on the individual tenses and aspects.

===Finite forms===
In referring to an action taking place regularly (and not limited to the future or to the past), the [[simple present]] is used: ''He brushes his teeth every morning''. For an action taking place at the present time, the [[present progressive]] construction is used: ''He is brushing his teeth now''. With some verbs expressing a present [[stative verb|state]], particularly the copula ''be'' and verbs expressing a mental state, the present simple is generally used: ''They are here''; ''I know that''. However other state verbs use the present progressive or present simple depending on whether the state is considered temporary or permanent: ''The pen is lying on the table''; ''Paris lies on the Seine''.

For past actions or states, the [[simple past]] is generally used: ''He went out an hour ago''; ''Columbus knew the shape of the world''. However, for completed actions for which no past time frame is implied or expressed, the [[present perfect]] is normally used: ''I have made the dinner'' (i.e. the dinner is now ready). For an action in the course of taking place, or a temporary state existing, at the past time being referred to (compare uses of the present progressive above), the [[past progressive]] is used: ''We were sitting on the beach when...'' For an action that was completed before the past time being referred to, the [[past perfect]] is used: ''We had sat down on the blanket when...''

For actions or events expected to take place in the future, the construction with ''will'' can be used: ''The president will arrive tomorrow.'' Future events are also often expressed using the ''[[going-to future|be going to]]'' construction: ''She is going to arrive tomorrow.'' Planned events can also be referred to using the present progressive (''She is arriving tomorrow'') or, if precisely scheduled, the simple present (''She arrives tomorrow''). The future progressive and future perfect can be used analogously to the past equivalents: ''We will be sitting on the beach this afternoon''; ''We will have left the house by 4 o'clock''. However, in subordinate clauses expressing a condition or a time reference, present forms are used rather than the forms with ''will'': ''If/When you get'' (not ''will get'') ''there...''

When expressing actions or events lasting up to a specified time, the appropriate perfect construction is used (with the progressive if expressing a temporary state that would generally be expressed with a progressive form): ''We have been having some problems lately''; ''I have lived here for six years''; ''We had been working since the previous evening''; ''We will have been working for twelve hours by the time you arrive''.

The use of tense and aspectual forms in condition and conditional clauses follows special patterns; see [[conditional mood]]. For use of tenses in [[indirect speech]], see [[sequence of tenses]]. For the use of subjunctive forms, see [[English subjunctive]].

===Non-finite forms===
{{hatnote|For details, see {{slink|Uses of English verb forms|Uses of non-finite verbs}}.}}
The bare [[infinitive]], identical to the base form of the verb, is used as a complement of most modal verbs and certain other verbs (''I can '''write'''''; ''They made him '''write'''''; ''I saw you '''write'''''), including in negated and inverted sentences formed using [[do-support|''do''-support]] (''He doesn't '''write'''''; ''Did you '''write'''?'').

Preceded by ''to'', it forms the ''to''-infinitive, which has a variety of uses, including as a [[noun phrase]] ('''''To write''' is '''to learn''''') and as the complement of many verbs (''I want '''to write'''''), as well as with certain adjectives and nouns (''easy '''to ride'''''; ''his decision '''to leave'''''), and in expressions of purpose (''You did it '''to spite me''''').

The past participle has the following uses:
*It is used with the auxiliary ''have'' in [[perfect tense|perfect]] constructions: ''They '''have written'''''; ''We '''had written''' before we heard the news''. (With verbs of motion, an archaic form with ''be'' may be found in older texts: ''he '''is come'''''.)
*It is used as a [[passive participle]], with ''be'' or ''get'', to form the [[passive voice]]: ''This book '''was written''' last year''; ''Trees sometimes '''get gnawed''' down by beavers.''
*It is used to form passive [[participial phrase]]s, which can be used adjectivally or adverbially (''a letter '''written on his computer'''''; '''''Beaten to a pulp''', he was carried away'') and as complements of certain verbs (''I got my car '''mended'''''; ''They had me '''placed on a list''''').
*It may be used as a simple [[adjective]]: as a passive participle in the case of [[transitive verb]]s (''the '''written''' word'', i.e. "the word that is written"), and as a perfect active participle in the case of some intransitive ones (''a '''fallen''' tree'', i.e. "a tree that has fallen").

The present participle has the following uses:
*It is used with forms of ''be'', in progressive ([[continuous tense|continuous]]) constructions: ''He '''is writing''' another book''; ''I intend '''to be sitting''' on the beach''. 
*It can form [[participial phrase]]s, which can be used adjectivally or adverbially: ''The man '''sitting over there''' is drunk''; '''''Being a lawyer''', I can understand this''; ''I saw her '''sitting by the tree'''''.
*It can serve as a simple adjective: ''It is a '''thrilling''' book.''

The same form used as a gerund has the following uses:
*It forms verbal phrases that are then used as nouns: '''''Lying in bed''' is my favorite hobby.''
*It forms similar phrases used as a complement of certain verbs: ''He tried '''writing''' novels''.

The logical subject of a phrase formed with a gerund can be expressed by a [[possessive]], as in ''I do not like'' '''''your/Jim's''''' ''drinking wine'', although a non-possessive noun or pronoun is often used instead, especially in informal English: ''I do not like'' '''''you/Jim''''' ''drinking wine''. The latter usage, though common, is sometimes considered ungrammatical or stylistically poor; it is given names like ''fused participle''<ref>H.W. Fowler, ''[[A Dictionary of Modern English Usage]]'', 1926</ref> and ''geriple''<ref name="geriple">''Penguin guide to plain English'', Harry Blamires (Penguin Books Ltd., 2000) {{ISBN|978-0-14-051430-8}} pp.144-146</ref> since it is seen to confuse a participle with a gerund. For more information see [[fused participle]].

Gerund forms are often used as plain [[verbal noun]]s, which function grammatically like common nouns (in particular, by being qualified by adjectives rather than adverbs): ''He did some excellent writing'' (compare the gerund: ''He is known for writing excellently''). Such verbal nouns can function, for instance, as [[noun adjunct]]s, as in ''a writing desk''.

== Objects and complements ==
Verbs are used in certain patterns which require the presence of specific [[argument (linguistics)|argument]]s in the form of [[object (grammar)|object]]s and other [[complement (grammar)|complement]]s of particular types. (A given verb may be usable in one or more of these patterns.)

A verb with a direct object is called a [[transitive verb]]. Some transitive verbs have an indirect object in addition to the direct object. Verbs used without objects are called [[intransitive verb|intransitive]]. Both transitive and intransitive verbs may also have additional complements that are not considered objects.

A single (direct) object generally follows the verb: ''I love '''you'''''. If there is an indirect object, it precedes the direct object (''I gave '''him''' the book''), although an indirect object can also be expressed with a [[English prepositions|prepositional phrase]] following the direct object (and this method is usual when the direct object is a personal pronoun): ''I gave the book '''to John'''''; ''I bought them '''for you'''''.

Other complements may include prepositional phrases, [[non-finite clause]]s and [[content clause]]s, depending on the applicable verb pattern. These complements normally follow any objects. For example:
*''I insist '''on coming'''.'' (this use of the verb ''insist'' involves a prepositional phrase with ''on'')
*''I expect '''to arrive tomorrow'''.'' (this use of ''expect'' involves a to-infinitive phrase)
*''I asked him '''whether he was coming'''.'' (this use of ''ask'' involves a direct object ''(him)'' and an interrogative content clause)

More examples can be found at [[Gerund#Verb_patterns_classified_as_.22gerund.22_use|Verb patterns with the gerund]].

English has a number of [[ergative verb]]s: verbs which can be used either intransitively or transitively, where in the intransitive use it is the subject that is receiving the action, and in the transitive use the direct object is receiving the action while the subject is causing it. An example is ''sink'': ''The ship '''sank''''' (intransitive use); ''The explosion '''sank''' the ship'' (transitive use). Other common examples include ''open, sink, wake, melt, boil, collapse, explode, freeze, start, sell''.

For more details on how verbs are built up into clauses, see [[English clause syntax]].

==Phrasal verbs==
{{main article|Phrasal verb}}
Many English verbs are used in particular combinations with adverbial modifiers such as ''on'', ''away'', ''out'', etc. Often these combinations take on independent meanings. They are referred to as [[phrasal verb]]s. (This term may also include verbs used with a complement introduced by a particular preposition that gives it a special meaning, as in ''take to (someone)''.)

The adverbial particle in a phrasal verb generally appears close after the verb, though it may follow the object, particularly when the object is a pronoun: ''Hand over the money'' or ''Hand the money over'', but ''Hand it over''.

==See also==
*[[Conditional sentence]]
*[[English grammar]]
*[[English irregular verbs]]
*[[English modal verbs]]
*[[English passive voice]]
*[[wikt:Appendix:Irregular verbs:English|Wiktionary appendix: Irregular English verbs]]
*[[Northern subject rule]]
*[[Conversion (word formation)]]
* [[Uses of English verb forms]]

==References==
===Citations===
{{reflist}}
===General references===
*Gilman, E. Ward (editor in chief) ''Merriam Webster's Dictionary of English Usage'' (Merriam-Webster, 1989) {{ISBN|0-87779-132-5}}
*[[Sidney Greenbaum|Greenbaum, Sidney]]. ''The Oxford English Grammar''. (Oxford, 1996) {{ISBN|0-19-861250-8}}
*[[Tom McArthur (linguist)|McArthur, Tom]], ''The Oxford Companion to the English Language'' (Oxford, 1992) {{ISBN|0-19-863136-7}}
* {{Cite book|title= Cambridge grammar of English : a comprehensive guide ; spoken and written English grammar and usage ; [Cambridge international corpus]|authorlink1=Ronald Carter (linguist)|last1=Carter|first1=Ronald|last2=McCarthy|first2=Michael |isbn=9783125343313|date=2006|publisher=Cambridge University Press}}
* English Verb Forms With Search Bar  all verb V1 V2 V3 listed here - [https://www.aaaenos.com/list/forms-of-verb Verb Forms]
{{Wiktionary category|type=English verbs|category=English verbs}}
{{wiktionary|Appendix:English verbs}}
{{wikibooks|English/English in use|Verbs}}
*[http://owl.english.purdue.edu/owl/resource/601/01/ Sequence of Tenses] at the Online Writing Lab at [[Purdue University]]
*[http://www.ling.upenn.edu/~beatrice/syntax-textbook/box-modals.html Modals and auxiliary verbs in English]
*[http://www.glenys-hanson.info/pedagogical-articles/grammar-articles/english-verb-tenses-a-dynamic-presentation The English Verb Tense System: A dynamic presentation using the Cuisenaire Rods] {{Webarchive|url=https://web.archive.org/web/20160316223851/http://www.glenys-hanson.info/pedagogical-articles/grammar-articles/english-verb-tenses-a-dynamic-presentation/ |date=2016-03-16 }}
*English verbs - [https://englishintake.com/contents/lesson-english-verbs/ Verb Forms]

{{Language verbs}}

{{DEFAULTSORT:English Verbs}}
[[Category:English verbs]]
[[Category:Verbs by language]]
[[Category:English words]]