English verb conjugation CAN DO

Irregular verb: do - did - done


Affirmation

Simple form

I can do
you can do
he can do
we can do
you can do
they can do

V-ing form

I can be doing
you can be doing
he can be doing
we can be doing
you can be doing
they can be doing

Perfect

I can have done
you can have done
he can have done
we can have done
you can have done
they can have done

V-ing perfect

I can have been doing
you can have been doing
he can have been doing
we can have been doing
you can have been doing
they can have been doing

Negation

Simple form

I cannot do
you cannot do
he cannot do
we cannot do
you cannot do
they cannot do

V-ing form

I cannot be doing
you cannot be doing
he cannot be doing
we cannot be doing
you cannot be doing
they cannot be doing

Perfect

I cannot have done
you cannot have done
he cannot have done
we cannot have done
you cannot have done
they cannot have done

V-ing perfect

I cannot have been doing
you cannot have been doing
he cannot have been doing
we cannot have been doing
you cannot have been doing
they cannot have been doing

Interrogative form

Simple form

can I do?
can you do?
can he do?
can we do?
can you do?
can they do?

V-ing form

can I be doing?
can you be doing?
can he be doing?
can we be doing?
can you be doing?
can they be doing?

Perfect

can I have done?
can you have done?
can he have done?
can we have done?
can you have done?
can they have done?

V-ing perfect

can I have been doing?
can you have been doing?
can he have been doing?
can we have been doing?
can you have been doing?
can they have been doing?

Interro-negative form

Simple form

can I not do?
can you not do?
can he not do?
can we not do?
can you not do?
can they not do?

V-ing form

can I not be doing?
can you not be doing?
can he not be doing?
can we not be doing?
can you not be doing?
can they not be doing?

Perfect

can I not have done?
can you not have done?
can he not have done?
can we not have done?
can you not have done?
can they not have done?

V-ing perfect

can I not have been doing?
can you not have been doing?
can he not have been doing?
can we not have been doing?
can you not have been doing?
can they not have been doing?