English verb conjugation COULD RUFF

Regular verb: ruff - ruffed - ruffed

Affirmation

Simple form

I could ruff
you could ruff
he could ruff
we could ruff
you could ruff
they could ruff

V-ing form

I could be ruffing
you could be ruffing
he could be ruffing
we could be ruffing
you could be ruffing
they could be ruffing

Perfect

I could have ruffed
you could have ruffed
he could have ruffed
we could have ruffed
you could have ruffed
they could have ruffed

V-ing perfect

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

Negation

Simple form

I could not ruff
you could not ruff
he could not ruff
we could not ruff
you could not ruff
they could not ruff

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I ruff?
could you ruff?
could he ruff?
could we ruff?
could you ruff?
could they ruff?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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