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 couldn't sliver
you couldn't sliver
he couldn't sliver
we couldn't sliver
you couldn't sliver
they couldn't sliver

V-ing form

I couldn't be slivering
you couldn't be slivering
he couldn't be slivering
we couldn't be slivering
you couldn't be slivering
they couldn't be slivering

Perfect

I couldn't have slivered
you couldn't have slivered
he couldn't have slivered
we couldn't have slivered
you couldn't have slivered
they couldn't have slivered

V-ing perfect

I couldn't have been slivering
you couldn't have been slivering
he couldn't have been slivering
we couldn't have been slivering
you couldn't have been slivering
they couldn't 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

couldn't I sliver?
couldn't you sliver?
couldn't he sliver?
couldn't we sliver?
couldn't you sliver?
couldn't they sliver?

V-ing form

couldn't I be slivering?
couldn't you be slivering?
couldn't he be slivering?
couldn't we be slivering?
couldn't you be slivering?
couldn't they be slivering?

Perfect

couldn't I have slivered?
couldn't you have slivered?
couldn't he have slivered?
couldn't we have slivered?
couldn't you have slivered?
couldn't they have slivered?

V-ing perfect

couldn't I have been slivering?
couldn't you have been slivering?
couldn't he have been slivering?
couldn't we have been slivering?
couldn't you have been slivering?
couldn't they have been slivering?

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