English verb conjugation CAN REFUTE

Regular verb: refute - refuted - refuted

Affirmation

Simple form

I can refute
you can refute
she can refute
we can refute
you can refute
they can refute

V-ing form

I can be refuting
you can be refuting
she can be refuting
we can be refuting
you can be refuting
they can be refuting

Perfect

I can have refuted
you can have refuted
she can have refuted
we can have refuted
you can have refuted
they can have refuted

V-ing perfect

I can have been refuting
you can have been refuting
she can have been refuting
we can have been refuting
you can have been refuting
they can have been refuting

Negation

Simple form

I cannot refute
you cannot refute
she cannot refute
we cannot refute
you cannot refute
they cannot refute

V-ing form

I cannot be refuting
you cannot be refuting
she cannot be refuting
we cannot be refuting
you cannot be refuting
they cannot be refuting

Perfect

I cannot have refuted
you cannot have refuted
she cannot have refuted
we cannot have refuted
you cannot have refuted
they cannot have refuted

V-ing perfect

I cannot have been refuting
you cannot have been refuting
she cannot have been refuting
we cannot have been refuting
you cannot have been refuting
they cannot have been refuting

Interrogative form

Simple form

can I refute?
can you refute?
can she refute?
can we refute?
can you refute?
can they refute?

V-ing form

can I be refuting?
can you be refuting?
can she be refuting?
can we be refuting?
can you be refuting?
can they be refuting?

Perfect

can I have refuted?
can you have refuted?
can she have refuted?
can we have refuted?
can you have refuted?
can they have refuted?

V-ing perfect

can I have been refuting?
can you have been refuting?
can she have been refuting?
can we have been refuting?
can you have been refuting?
can they have been refuting?

Interro-negative form

Simple form

can I not refute?
can you not refute?
can she not refute?
can we not refute?
can you not refute?
can they not refute?

V-ing form

can I not be refuting?
can you not be refuting?
can she not be refuting?
can we not be refuting?
can you not be refuting?
can they not be refuting?

Perfect

can I not have refuted?
can you not have refuted?
can she not have refuted?
can we not have refuted?
can you not have refuted?
can they not have refuted?

V-ing perfect

can I not have been refuting?
can you not have been refuting?
can she not have been refuting?
can we not have been refuting?
can you not have been refuting?
can they not have been refuting?

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