English verb conjugation COULD SLIVER

Regular verb: sliver - slivered - slivered

Affirmation

Simple form

I could sliver
you could sliver
he could sliver
we could sliver
you could sliver
they could sliver

V-ing form

I could be slivering
you could be slivering
he could be slivering
we could be slivering
you could be slivering
they could be slivering

Perfect

I could have slivered
you could have slivered
he could have slivered
we could have slivered
you could have slivered
they could have slivered

V-ing perfect

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

Negation

Simple form

I could not sliver
you could not sliver
he could not sliver
we could not sliver
you could not sliver
they could not sliver

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I sliver?
could you sliver?
could he sliver?
could we sliver?
could you sliver?
could they sliver?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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