English verb conjugation COULD DO DO

Regular verb: do do - do doed - do doed

Warning, this verb may not exist. Conjugation is given as example.

Affirmation

Simple form

I could do do
you could do do
she could do do
we could do do
you could do do
they could do do

V-ing form

I could be do doing
you could be do doing
she could be do doing
we could be do doing
you could be do doing
they could be do doing

Perfect

I could have do doed
you could have do doed
she could have do doed
we could have do doed
you could have do doed
they could have do doed

V-ing perfect

I could have been do doing
you could have been do doing
she could have been do doing
we could have been do doing
you could have been do doing
they could have been do doing

Negation

Simple form

I could not do do
you could not do do
she could not do do
we could not do do
you could not do do
they could not do do

V-ing form

I could not be do doing
you could not be do doing
she could not be do doing
we could not be do doing
you could not be do doing
they could not be do doing

Perfect

I could not have do doed
you could not have do doed
she could not have do doed
we could not have do doed
you could not have do doed
they could not have do doed

V-ing perfect

I could not have been do doing
you could not have been do doing
she could not have been do doing
we could not have been do doing
you could not have been do doing
they could not have been do doing

Interrogative form

Simple form

could I do do?
could you do do?
could she do do?
could we do do?
could you do do?
could they do do?

V-ing form

could I be do doing?
could you be do doing?
could she be do doing?
could we be do doing?
could you be do doing?
could they be do doing?

Perfect

could I have do doed?
could you have do doed?
could she have do doed?
could we have do doed?
could you have do doed?
could they have do doed?

V-ing perfect

could I have been do doing?
could you have been do doing?
could she have been do doing?
could we have been do doing?
could you have been do doing?
could they have been do doing?

Interro-negative form

Simple form

could I not do do?
could you not do do?
could she not do do?
could we not do do?
could you not do do?
could they not do do?

V-ing form

could I not be do doing?
could you not be do doing?
could she not be do doing?
could we not be do doing?
could you not be do doing?
could they not be do doing?

Perfect

could I not have do doed?
could you not have do doed?
could she not have do doed?
could we not have do doed?
could you not have do doed?
could they not have do doed?

V-ing perfect

could I not have been do doing?
could you not have been do doing?
could she not have been do doing?
could we not have been do doing?
could you not have been do doing?
could they not have been do doing?

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