English verb conjugation COULD REFUTE

Regular verb: refute - refuted - refuted


Affirmation

Simple form

I could refute
you could refute
he could refute
we could refute
you could refute
they could refute

V-ing form

I could be refuting
you could be refuting
he could be refuting
we could be refuting
you could be refuting
they could be refuting

Perfect

I could have refuted
you could have refuted
he could have refuted
we could have refuted
you could have refuted
they could have refuted

V-ing perfect

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

Negation

Simple form

I could not refute
you could not refute
he could not refute
we could not refute
you could not refute
they could not refute

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I refute?
could you refute?
could he refute?
could we refute?
could you refute?
could they refute?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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