Verbs: the essentials

This guide covers the essentials that you need to know. There are links below and at the end to take you to guides which explain the different types of verbs in English in more depth.

For the purposes of this guide, a verb is defined as
a word used to describe an action, state, or occurrence

So, taking the four pictures above we can sentences containing verbs as follows:

The sunflower is lovely
describing a state
The planes have flown in formation
describing an occurrence
He kicked the ball
describing an action
She must take her dog for a walk
describing a state

In these cases, the verbs are performing slightly different functions, as we shall see.

Three sorts of verbs

Fundamentally in English, and many (but not all) other languages, there are three types of verb.

Lexical verbs
1. Examples: smoke, go, enjoy, imagine, come, decide, think, spin etc.
2. Meaning: these verbs carry intrinsic meaning. Even in isolation, for example, a statement such as
  Jump!
  can be understood and the verb can be defined.
3. Form: these verbs alter according to predictable, if sometimes irregular, patterns.
  They often change form to show:
      person
  I smoke
  she smokes
       tense
  I come
  I came
  I imagine
  I imagined
      aspect
  I decide
  I am deciding
  I have decided
Auxiliary verbs
1. Types
  1. Modal auxiliary verbs, for example:
    can, may, might, should, must, could
    etc. occurring in, e.g.:
        I can see him
        She may be late
        They might complain
        We should go now
        I must get the car fixed
        We could understand
  2. Primary auxiliary verbs, for example:
    have, get, be, do
    occurring in, e.g.:
        I have spent the money
        I got the car fixed
        She is writing to him
        Do you understand?
2. Meaning: these verbs serve to alter the meaning, tense or viewpoint of the main, lexical verb. In isolation, they mean nothing definable. If, for example, we say Could, the sense can only be understood if it is linked to a lexical verb in something like
  It could rain.
  Equally, the expression Don't! only carries a meaning if the main verb is known or spoken / written as in, e.g.,
  Don't go!
3. Form:
  1. Many modal auxiliary verbs do not show changes for person, tense and aspect but some do so we can change, e.g.:
        She can swim well
    to
        She could swim well
    We cannot, however, change must to musted etc.
    We can also change form to show person with some modal auxiliary verbs, for example, changing
        I have to go
    to
        He has to go
    and we can show some aspects as in, e.g.
        She should have finished by now
    etc.
  2. Primary auxiliary verbs change form much like lexical verbs although they are all irregular, e.g.:
        She had the car fixed
        I have got the house painted
        They were arrested
        Did you get the money?
Copular verbs
1. Meaning
  These verbs act to link noun subjects to some kind of attribute or make it equivalent to another noun. The archetypal copular verb is be but there are a number of other verbs that act in the same way. For example:
      He is a doctor
      That seems interesting
      They appear tired
      That smelt terrible
2. Form: these verbs alter to show number, tense and aspect just like main or lexical verbs so we have, e.g.,
      She became the Chief Executive
      He was getting angry
      They seemed a little tired
  etc.

Lexical verbs

These verbs carry intrinsic meaning

We can categorise lexical verbs in a number of ways. The first two categories are the really crucial ones.

Intransitive verbs
Some verbs never take an object and can stand alone. We can say, for example,
    They came
    I responded etc.
and the meaning is clear.
However, for example, we cannot say
    *She arrived the hotel
or
    *It occurred the rain
because neither of these verbs can refer to a noun directly, i.e., they cannot take an object. We can, and frequently do, insert a preposition to get, e.g.,
    She arrived at the hotel
or
    It occurred to me
but the verb is still not taking an object in these cases.
Other examples of generally intransitive verbs include
agree, appear, become, belong, collapse, die, disappear, exist, fall, go, happen, inquire, laugh, live, look, remain, respond, rise, sit, sleep, stand, stay, vanish, wait.
Most of these can be followed by a prepositional phrase such as about the weather, at six o'clock, of hunger and so on but these are not objects of the verb. Technically, they are referred to as complements.
Transitive verbs
Verbs which are transitive must have an object complement.
For example, we cannot have a sentence such as
*He brought
or
*She sent
because the verbs bring and send must have an object to make any sense. We need to know both who or what did it and what or who it was done to.
Other examples of generally transitive verbs include: buy, cost, get, give, make, owe, pass, show, take, tell.
We can divide transitive verbs into two more categories:
1. Those transitive verbs which can take only one object. These are called monotransitive verbs. For example, we can say
  She drank the coffee
  but not
  *She drank me the coffee.
  Other examples of verbs which only take one object when they are transitive include eat, say, play, read, remember, suspect.
2. Those transitive verbs that can take two objects. These are verbs which are ditransitive. For example, we can say
      He bought the drinks
  and that's a verb with a single object (the drinks) but we can also say
      He bought us the drinks
  and here we have two objects, the drinks (the direct object) and us (the indirect object).
  Another example is
      They sold me the car
  which has a direct object (the car) and an indirect object (me).
  We can also change the order and put the indirect object at the end but then we have to insert a preposition:
      He bought the drinks for us
      They sold the car to me
  Other examples of verbs which can or even must be ditransitive include
  allow, appoint, ask, assure, award, bake, bet, bring, buy, call, cause, charge, cook, cost, cut, deal, do, draw, feed, find, get, give, hand, lend, make, offer, order, owe, pass, pay, promise, read, save, sell, send, show, teach, tell, throw, wish, write
  A fuller list with examples, is available as a PDF document via the link at the end in the list of related guides.
  In English, the indirect object comes before the direct object but that is not always the case in other languages.
Verbs which can be both transitive and intransitive
These verbs, and there are lots of them, can be both.
For example, we can say
She eats (intransitive)
and
She eats fish (transitive).
Other examples in this category include
drink, explain, help, decide, travel, fly, swim, play, continue.

transitive-intransitive pairings

There are a few verbs in English which derive from the same root but have transitive and intransitive variants. For example, both rise and raise derive from the same source (the Old English ræran, rear) but the first is intransitive and the second transitive. The others are lie / lay and sit / set so we get, for example:

He rose early (intransitive)
and
He raised the question (transitive)
They are lying on the beach (intransitive)
and
They are laying the foundations (transitive)
He sat near the table (intransitive)
and
He set it near the table (transitive)

Other pairs of verbs which are unrelated in terms of origin also form intransitive-transitive couples. In English, for example:

fall is intransitive but drop is transitive:
The ball fell
vs.
She dropped the ball
speak is usually intransitive but tell is transitive (often ditransitive):
He spoke at the meeting
vs.
He told me the truth
die is intransitive but kill is transitive
He died in 1940
vs.
She killed him in 1940

Some other verbs take on slightly different meaning when used transitively or intransitively. For example

He ran across the garden (intransitive)
and
He ran a good business (transitive)
I can manage alone (intransitive)
and
He managed the school (transitive)
The plane flew (intransitive)
vs.
He flew the plane (transitive)
She called at 6 (intransitive)
and
She called her friends (monotransitive)
or
She called me an idiot (ditransitive)

Other languages and teaching

Other people's languages do things differently.

While the essential distinction between transitive and intransitive verb use is common across languages, the actual verbs in question will vary. A verb that is intransitive in English may well be transitive in another language and vice versa.
In English, the verbs wash and meet can be used intransitively as well as transitively:

They washed the car (transitive)
vs.
They washed and then went out (intransitive)
We met the manager (transitive)
vs.
We met on Thursday (intransitive)

In other languages, these two verbs can only be transitive so the reflexive pronoun is inserted giving a translation like
    The washed themselves
    We met us
This can, of course, lead to error.
Some languages, such as Japanese, have large sets of pairs of verbs with slightly different forms, the one transitive, the other intransitive.
It is, therefore, very important that we teach the verb's grammar along with its meaning. If we don't, we invite error such as
    *She died him
    *He killed in 1940
    *I laughed the film
    *She smiled him
    *I assured
    *He explained me it
    *I complained the manager
etc. and all of these are possible in some languages.

If you would like to see if you have understood this section, try this test.

Summary

summary

For more about this section, go to the guide to lexical verbs.

Auxiliary verbs

These are sometimes called 'helping verbs'

Auxiliary verbs cannot stand alone and retain their meaning unless the lexical verb they refer to is understood. For example
    I might
means nothing on its own but
    I might go
carries real meaning. The auxiliary verb might expresses the speaker's sense of likelihood. It is possible to say
    I might
in response to
    Are you going to the meeting?
but here the main lexical verb go is understood by both speaker and hearer.

There are, fundamentally, two sorts of auxiliary verb.

Primary auxiliary verbs
These form tenses, voice or aspects with lexical verbs. Traditionally, they are restricted to the three verbs be, have and do but many (including this site) add get to the list.
For example
- We can alter the tense (and sense) of I work by using the auxiliary have in, e.g.,
  I have worked hard.
- We can change how the speaker wants to communicate his or her view of an event by changing the aspect of I work by using the auxiliary be in
  I am working.
- We can change the emphasis of what we say also by using the auxiliary be, changing, e.g.
  I broke the window
  to
  The window was broken by me.
- We can change the sense of who did what by using the auxiliary get in
  I got John to repair the car.
  or the auxiliary have as in
  I had the car repaired at the garage
- We can form negatives and questions by using the verb do as in
  Do you want to come?
  or
  I don't see the problem.

There is a guide to primary auxiliaries on this site and you should consult that for more information.

Modal auxiliary verbs
These alter the hearer's perception of how the speaker understands the situation.
For example
- We can express obligation by using the modal auxiliary have to, changing
      I think
  to
      I have to think
  or
      I left
  to
      I had to leave.
- We can express our view of likelihood by inserting a modal auxiliary into
  They arrive
  and making
  They might / should / must arrive soon.
- We can give or withhold permission by using a range of modal auxiliary verbs by changing
      You go
  to
      You may go
  or
      You can't go.

The most common list of modal auxiliary verbs is: can, may, shall, will, could, might, should, would, must, ought to, used, need and dare.

Modal auxiliary verbs are traditionally divided into pure modal auxiliary verbs, semi-modal auxiliary verbs and marginal modal auxiliary verbs. Pure modal auxiliary verbs include can, must, will etc., semi-modal auxiliary verbs include need to, dare to and used to and marginal modal auxiliary verbs are forms such as going to, be about to, tend to, be likely to etc.

The pure modal auxiliaries are sometimes described as defective because they don't exhibit the full range of forms in the way that lexical verbs do. For example, must has no past tense (we can't say *musted), we don't form questions with do (so we can't say *Do you can?) and we don't add an -s in the third person (so we don't get *She mights).

Modal auxiliary verbs perform a large range of functions in English. If you want to know more, a good place to start is the guide to modality.

Summary:

summary

Copular verbs

These are sometimes called 'linking verbs'

These verbs serve to link the subject of a sentence directly to its function or its characteristics. There is a list in the guide to copular verbs on this site. Briefly, however, copular verbs perform two functions:

They link a subject to an object and tell us that they refer to the same thing.
For example: in
Mary is a teacher
or
Mary became a teacher
or
Mary looks like a teacher
we know that Mary and a teacher refer to the same person.
They link the subject to its characteristic.
For example: in
Mary appears angry
Mary became angry
and
Mary is angry
we know that we are dealing with an angry Mary.

Verbs like be, become and turn into often function in both categories:
    He became angry
vs.
    He became a teacher
    She was unhappy
vs.
    She was an engineer.

Verbs of perception usually only function in the second category and are followed by an adjective:
    It looks awful
    It smells sweet
    It sounds horrible
    They appeared drunk
    She seemed unwell
etc.

Many copular verbs also function as lexical verbs in other circumstances:
She appears happy (copula use)
vs.
She appeared at the door (intransitive lexical use with a prepositional phrase).
A copular verb can, therefore, only be defined by what it does, not what it looks like.

Summary of verb types

summary

Related guides
verb and clause types	for a much more advanced guide to the area
copular verbs	an essential guide to these
modality	the essential guide
primary auxiliaries	for a run-down of the main primary (i.e., tense-forming) auxiliary verbs
lexical verbs	for a guide to the meaning-carrying verbs in English
ditransitive verbs	a list of the commonest ones with a few notes

Try a last test on all of this.