English verb conjugation COULD RIFFLE

Regular verb: riffle - riffled - riffled

Affirmation

Simple form

I could riffle
you could riffle
he could riffle
we could riffle
you could riffle
they could riffle

V-ing form

I could be riffling
you could be riffling
he could be riffling
we could be riffling
you could be riffling
they could be riffling

Perfect

I could have riffled
you could have riffled
he could have riffled
we could have riffled
you could have riffled
they could have riffled

V-ing perfect

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

Negation

Simple form

I could not riffle
you could not riffle
he could not riffle
we could not riffle
you could not riffle
they could not riffle

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I riffle?
could you riffle?
could he riffle?
could we riffle?
could you riffle?
could they riffle?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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