English verb conjugation COULD PROVE

Irregular verb: prove - proved - proven

Affirmation

Simple form

I could prove
you could prove
he could prove
we could prove
you could prove
they could prove

V-ing form

I could be proving
you could be proving
he could be proving
we could be proving
you could be proving
they could be proving

Perfect

I could have proven
you could have proven
he could have proven
we could have proven
you could have proven
they could have proven

V-ing perfect

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

Negation

Simple form

I could not prove
you could not prove
he could not prove
we could not prove
you could not prove
they could not prove

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I prove?
could you prove?
could he prove?
could we prove?
could you prove?
could they prove?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Page top