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 can't refute
you can't refute
she can't refute
we can't refute
you can't refute
they can't refute

V-ing form

I can't be refuting
you can't be refuting
she can't be refuting
we can't be refuting
you can't be refuting
they can't be refuting

Perfect

I can't have refuted
you can't have refuted
she can't have refuted
we can't have refuted
you can't have refuted
they can't have refuted

V-ing perfect

I can't have been refuting
you can't have been refuting
she can't have been refuting
we can't have been refuting
you can't have been refuting
they can't 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't I refute?
can't you refute?
can't she refute?
can't we refute?
can't you refute?
can't they refute?

V-ing form

can't I be refuting?
can't you be refuting?
can't she be refuting?
can't we be refuting?
can't you be refuting?
can't they be refuting?

Perfect

can't I have refuted?
can't you have refuted?
can't she have refuted?
can't we have refuted?
can't you have refuted?
can't they have refuted?

V-ing perfect

can't I have been refuting?
can't you have been refuting?
can't she have been refuting?
can't we have been refuting?
can't you have been refuting?
can't they have been refuting?

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