English verb conjugation COULD COO

Regular verb: coo - cooed - cooed


Affirmation

Simple form

I could coo
you could coo
he could coo
we could coo
you could coo
they could coo

V-ing form

I could be cooing
you could be cooing
he could be cooing
we could be cooing
you could be cooing
they could be cooing

Perfect

I could have cooed
you could have cooed
he could have cooed
we could have cooed
you could have cooed
they could have cooed

V-ing perfect

I could have been cooing
you could have been cooing
he could have been cooing
we could have been cooing
you could have been cooing
they could have been cooing

Negation

Simple form

I could not coo
you could not coo
he could not coo
we could not coo
you could not coo
they could not coo

V-ing form

I could not be cooing
you could not be cooing
he could not be cooing
we could not be cooing
you could not be cooing
they could not be cooing

Perfect

I could not have cooed
you could not have cooed
he could not have cooed
we could not have cooed
you could not have cooed
they could not have cooed

V-ing perfect

I could not have been cooing
you could not have been cooing
he could not have been cooing
we could not have been cooing
you could not have been cooing
they could not have been cooing

Interrogative form

Simple form

could I coo?
could you coo?
could he coo?
could we coo?
could you coo?
could they coo?

V-ing form

could I be cooing?
could you be cooing?
could he be cooing?
could we be cooing?
could you be cooing?
could they be cooing?

Perfect

could I have cooed?
could you have cooed?
could he have cooed?
could we have cooed?
could you have cooed?
could they have cooed?

V-ing perfect

could I have been cooing?
could you have been cooing?
could he have been cooing?
could we have been cooing?
could you have been cooing?
could they have been cooing?

Interro-negative form

Simple form

could I not coo?
could you not coo?
could he not coo?
could we not coo?
could you not coo?
could they not coo?

V-ing form

could I not be cooing?
could you not be cooing?
could he not be cooing?
could we not be cooing?
could you not be cooing?
could they not be cooing?

Perfect

could I not have cooed?
could you not have cooed?
could he not have cooed?
could we not have cooed?
could you not have cooed?
could they not have cooed?

V-ing perfect

could I not have been cooing?
could you not have been cooing?
could he not have been cooing?
could we not have been cooing?
could you not have been cooing?
could they not have been cooing?