English grammar

Verbs: what they are, types and forms

A verb is the word that tells you what the subject does (run, write), what state it is in (know, belong) or what it is (be, seem). Every complete sentence needs at least one verb that shows tense: in "Prices rose sharply", rose is the verb. Verbs change form for tense and to agree with the subject.

Example

Three jobs a verb can do

  • Action: The students wrote an essay.
  • State: She knows the answer.
  • Linking: The room seems cold.
Try the exercise
  • Rules and examples
  • Exercise with answers
  • Free to read

Types of verbs

One verb can belong to more than one type, depending on how it is used in the sentence. Have is a main verb in "I have a car" and an auxiliary in "I have finished".

TypeWhat it doesExample
Action verbShows a physical or mental activityHe cooked dinner.
State verbShows a condition, feeling or beliefI believe you.
Linking verbJoins the subject to a descriptionThe film was long.
Auxiliary verbHelps a main verb form tenses, questions and the passiveShe is studying.
Modal verbAdds ability, possibility, advice or obligationYou should rest.
Transitive verbNeeds an objectThey built a bridge.
Intransitive verbHas no objectThe guests arrived.
Phrasal verbVerb plus a particle with its own meaningPlease fill in the form.

The five forms of a verb

Most English verbs have five forms. Regular verbs add -ed for both the past simple and the past participle. Irregular verbs change in other ways, so you need to learn them.

Be is the exception, with eight forms: be, am, is, are, was, were, been and being.

FormRegular (work)Irregular (take)Used for
Base formworktakeAfter to, modals and do: to work, can take
-s formworkstakesPresent simple with he, she, it
Past simpleworkedtookFinished past actions
Past participleworkedtakenPerfect tenses and the passive
-ing formworkingtakingContinuous tenses and gerunds

State verbs and continuous tenses

State verbs describe a situation rather than an activity, so they are not normally used in continuous tenses. Common ones are know, understand, believe, want, need, like, love, prefer, own, belong, seem and mean.

Some verbs are state verbs in one meaning and action verbs in another. "I think it's a good idea" is an opinion, so it stays simple. "I'm thinking about my answer" is a mental activity, so the continuous is fine. Have works the same way: "She has a car" but "She's having lunch".

Common mistakes

  • Wrong: I am knowing the answer.

    Right: I know the answer.

    Know is a state verb, so it does not take the continuous form.

  • Wrong: He go to college every day.

    Right: He goes to college every day.

    A third-person singular subject needs the -s form in the present simple.

  • Wrong: She didn't went to the party.

    Right: She didn't go to the party.

    After did or didn't, use the base form. The past is already shown by did.

  • Wrong: They was late for the exam.

    Right: They were late for the exam.

    Use were with plural subjects and with you.

Using this in IELTS and PTE

Verbs carry much of your grammatical accuracy in IELTS Writing and PTE Write Essay, because tense and agreement errors show up in almost every sentence. In IELTS Writing Task 1, verbs of change such as rise, fall, fluctuate and remain stable do most of the work, so learn their past forms. In Speaking, watch for state verbs in the continuous, such as "I am having two brothers", which is a frequent slip.

5 questions

Exercise

Try each one, then open it to check your answer.

  1. 1. Find the verb: "The committee approved the new budget."

    approved

    It tells you what the committee did.

  2. 2. What is the past participle of write?

    written

    Write is irregular: write, wrote, written.

  3. 3. Correct this: "I am wanting a new phone."

    I want a new phone.

    Want is a state verb and stays in the simple form.

  4. 4. Is seem in "You seem tired" an action verb or a linking verb?

    A linking verb.

    It joins the subject to a description and shows no action.

  5. 5. Complete this: "My brother ___ (live) in Mumbai."

    lives

    A singular subject in the present simple takes the -s form.

Frequently asked questions

What are the main types of verbs?+

The common groupings are action and state verbs, linking verbs, auxiliary and modal verbs, transitive and intransitive verbs, and regular and irregular verbs. These groupings overlap, so one verb can belong to several.

What is the difference between a main verb and a helping verb?+

The main verb carries the meaning. A helping (auxiliary) verb adds grammar such as tense, a question or the passive. In "She has finished", finished is the main verb and has is the helping verb.

Can a sentence have no verb?+

A complete written sentence needs a verb that shows tense. Short verbless phrases such as "What a day!" or "No entry" appear in speech, signs and headlines, but avoid them in exam essays.

How many forms does a verb have?+

Most verbs have five: base, -s, past simple, past participle and -ing. For regular verbs the past simple and past participle are the same. Be has eight forms.

Keep going

More grammar lessons

© 2026 BandLadder. Written and checked by the BandLadder team. You may quote or cite this page with credit to BandLadder and a link to it; republishing it in full needs our written permission. Content use policy