English verb conjugation COULD SLEEP

Irregular verb: sleep - slept - slept

Affirmation

Simple form

I could sleep
you could sleep
she could sleep
we could sleep
you could sleep
they could sleep

V-ing form

I could be sleeping
you could be sleeping
she could be sleeping
we could be sleeping
you could be sleeping
they could be sleeping

Perfect

I could have slept
you could have slept
she could have slept
we could have slept
you could have slept
they could have slept

V-ing perfect

I could have been sleeping
you could have been sleeping
she could have been sleeping
we could have been sleeping
you could have been sleeping
they could have been sleeping

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I sleep?
could you sleep?
could she sleep?
could we sleep?
could you sleep?
could they sleep?

V-ing form

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

Perfect

could I have slept?
could you have slept?
could she have slept?
could we have slept?
could you have slept?
could they have slept?

V-ing perfect

could I have been sleeping?
could you have been sleeping?
could she have been sleeping?
could we have been sleeping?
could you have been sleeping?
could they have been sleeping?

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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