Form: present simple
verb / verb-s
Affirmative
| Subject | Verb (present tense) | |
|---|---|---|
| I You We You They |
work | well. |
| He/She/It | works |
The present simple form of the verb is identical to the base form in all persons except the third person singular. The third person singular is formed by adding -s to the base form. Note the changes in spelling:
work » works
live » lives
stay » stays
try » tries (a final -y changes to -ie- after a consonant)
wash » washes; kiss » kisses; watch » watches; box » boxes (we add -es after -sh, -s, -ch and -x)
go » goes (we add -es)
do » does (we add -es)
have » has
Negative
In the negative, we use the auxiliary do + not followed by the bare infinitive in all persons except the third person singular. In the third person singular we use does + not:
| Subject | Auxiliary | not | Verb (bare infinitive) | |
|---|---|---|---|---|
| I You We You They |
do | not | work | well. |
| He/She/It | does |
The contracted forms don't and doesn't are often used instead of do not and does not in spoken and in informal written language.
Interrogative
In the interrogative, we use the auxiliary do followed by the subject and the bare infinitive in all persons except the third person singular. In the third person singular, we use does:
| (Question word) | Auxiliary | Subject | Verb (bare infinitive) |
|---|---|---|---|
| How | do | I you we you they |
work? |
| does | he/she/it |
The verb BE in the present simple
The verb be has irregular present tense forms. In the present simple, the auxiliaries do and does are not used in the negative and interrogative if the main verb is be:
| Affirmative | Negative | Interrogative |
|---|---|---|
| I am at home. You are at home. He/She/It is at home. We are at home. You are at home. They are at home. |
I am not at home. You are not at home. He/She/It is not at home. We are not at home. You are not at home. They are not at home. |
Am I at home? Are you at home? Is he/she/it at home? Are we at home? Are you at home? Are they at home? |
The following contracted forms are often used in spoken and in informal written language:
I am » I'm
you are » you're
he/she/it is » he's/she's/it's
we are » we're
you are » you're
they are » they're
are not » aren't
is not » isn't
