English verb conjugation COULD RIFFLE

Regular verb: riffle - riffled - riffled

Affirmation

Simple form

I could riffle
you could riffle
she could riffle
we could riffle
you could riffle
they could riffle

V-ing form

I could be riffling
you could be riffling
she could be riffling
we could be riffling
you could be riffling
they could be riffling

Perfect

I could have riffled
you could have riffled
she 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
she could have been riffling
we could have been riffling
you could have been riffling
they could have been riffling

Negation

Simple form

I couldn't riffle
you couldn't riffle
she couldn't riffle
we couldn't riffle
you couldn't riffle
they couldn't riffle

V-ing form

I couldn't be riffling
you couldn't be riffling
she couldn't be riffling
we couldn't be riffling
you couldn't be riffling
they couldn't be riffling

Perfect

I couldn't have riffled
you couldn't have riffled
she couldn't have riffled
we couldn't have riffled
you couldn't have riffled
they couldn't have riffled

V-ing perfect

I couldn't have been riffling
you couldn't have been riffling
she couldn't have been riffling
we couldn't have been riffling
you couldn't have been riffling
they couldn't have been riffling

Interrogative form

Simple form

could I riffle?
could you riffle?
could she riffle?
could we riffle?
could you riffle?
could they riffle?

V-ing form

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

Perfect

could I have riffled?
could you have riffled?
could she 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 she have been riffling?
could we have been riffling?
could you have been riffling?
could they have been riffling?

Interro-negative form

Simple form

couldn't I riffle?
couldn't you riffle?
couldn't she riffle?
couldn't we riffle?
couldn't you riffle?
couldn't they riffle?

V-ing form

couldn't I be riffling?
couldn't you be riffling?
couldn't she be riffling?
couldn't we be riffling?
couldn't you be riffling?
couldn't they be riffling?

Perfect

couldn't I have riffled?
couldn't you have riffled?
couldn't she have riffled?
couldn't we have riffled?
couldn't you have riffled?
couldn't they have riffled?

V-ing perfect

couldn't I have been riffling?
couldn't you have been riffling?
couldn't she have been riffling?
couldn't we have been riffling?
couldn't you have been riffling?
couldn't they have been riffling?

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