The word 'verb'
The word verb originally comes from *were-, a
Proto-Indo-European word meaning "a word". It comes to
English through the Latin verbum and the Old French
verbe.
Verbal phrase
In simple sentences, the verb may be one word: The cat
sat on the mat. However, the verb may be a phrase: The
cat will sit on the mat.
Verbal phrases can be extremely difficult to analyse:
I'm afraid I will need to be going soon. There seem to
be three verbal phrases here, which mean something like
Sorry, I must go soon.
Verb forms
In English and many other languages, verbs change their
form. This is called inflection. Most English verbs have
six inflected forms (see the table), but be has eight
different forms. |
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Forms of English verbs
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Primary forms
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past: walked
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She walked home
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3rd singular present: walks
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She walks home
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plain present: walk
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They walk home
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Secondary forms
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plain form: walk
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She should walk home
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gerund: walking
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She is walking home
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past participle: walked
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She has walked home
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You should notice that some of the verb forms look the same.
You can say they have the same shape. For example, the plain
present and the plain form of walk have the same shape. The
same is true for the past and the past participle. But these
different forms can have different shapes in other verbs.
For example, the plain present of be is usually are but the
plain form is be. Also, the past of eat is ate, but the past
participle is eaten. When you look for a verb in the
dictionary, it is usually the plain form that you look for.
An English sentence must have at least one primary-form
verb. Each main clause can only have one primary-form verb.
Kinds of Verbs
English has two main kinds of verbs: normal verbs (called
lexical verbs) and auxiliary verbs. The difference between
them is mainly in where they can go in a sentence. Some
verbs are in both groups, but there are very few auxiliary
verbs in English. There are also two kinds of auxiliary
verbs: modal verbs and non-modal verbs. The table below
shows most of the English auxiliaries and a small number of
other verbs. |
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Kinds of English verbs
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auxiliary verbs
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lexical verbs
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modal verbs
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Can you play the piano? |
I fell. |
I will not be there. |
I didn't fall. |
Shall we go. |
I had breakfast. |
Yes, you may. |
I'm playing soccer. |
You must be joking. |
Must you make that noise? |
non-modal verbs
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Have you seen him?
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Have you seen him? |
I did see it. |
I did see it. |
He is sleeping. |
He is sleeping. |
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There are several auxiliary verbs: |
- To do (do, does, did)
- To be (am, is, are, was, were):
Creates a progressive tense
- To have (have, has, had): Creates a
perfect tense
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The following verbs are modal auxiliaries. |
- Can
- Could
- May
- Might
- Must
- Should
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Auxiliary verbs also inflect for negation. Usually this is
done by adding not or n't. |
- You shouldn't be here.
- He isn't at home.
- We haven't started yet.
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Use of the auxiliary do
Sometimes the verb do is used with other verbs. It does not
really change the meaning, but it can be used to make a
strong statement. |
- I do talk (Present)
- I did go (Past)
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It is also used in the negative when no other auxiliary
verbs are used. |
- I don't talk (Present)
- I didn't go (Past)
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Sometimes it comes before the subject. This is called
inversion and it usually means the sentence is a question. |
- Do you talk? (Present)
- Did you go? (Past)
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Many other languages do not use the verb do as an auxiliary
verb. They use the simple present for do, and the simple
past or perfect for did. |
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Tense, aspect, and mood
There are three main systems related to the verb: tense,
aspect, and mood.
Tense
Tense is mainly used to say when the verb happens: in the
past, present, or future. In order to explain and understand
tense, it is useful to imagine time as a line on which past
tense, present tense and future tense are positioned.
Some languages have all three tenses, some have only two,
and some have no tenses at all. English and Japanese for
example have only two tenses: past and present. Chinese and
Indonesian verbs do not show tense. Instead they use other
words in the sentence to show when the verb happens. |
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English tenses
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Past tense
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Present tense
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She walked home. |
She walks home. |
He ran quickly. |
He runs quickly. |
I could swim well. |
I can swim well. |
Did you live here?
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Do you live here?
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Aspect
Aspect usually shows us things like whether the action is
finished or not, or if something happens regularly. English
has two aspects: progressive and perfect. In English, aspect
is usually shown by using participle verb forms. Aspect can
combine with present or past tense.
Progressive aspect
English uses the gerund-participle, usually together with
the auxiliary be (and its forms am, is, are, was, and were)
to show the progressive aspect. |
- I am sleeping. (present progressive)
- He was studying English last night.
(past progressive)
- He will be going to the store
tomorrow (future progressive)
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Many other languages, such as French, do not use progressive
tenses. |
- I have seen him twice. (present
perfect)
- I had lived there for three years.
(past perfect)
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The past perfect can be used to express an unrealized hope,
wish, etc. |
- He had intended to bake a cake but
ran out of flour.
- She had wanted to buy him a gift but
he refused.
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After If,
wish and
would rather, the past perfect can be
used to talk about past events that never happened. |
- If only
I had been born standing up!
- I wish you
had told me that before.
- I would rather you
had gone
somewhere else.
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Mood
Finally, English mood is now usually shown by using modal
verbs. In the past, English had a full mood system but that
has almost completely disappeared. The subjunctive mood now
uses the plain form. There is also a form of be that is used
in conditionals to show that something is not true (e.g., If
I were a bird, I would fly to California.) |