English verb conjugation COULD REVISE

Regular verb: revise - revised - revised

Affirmation

Simple form

I could revise
you could revise
he could revise
we could revise
you could revise
they could revise

V-ing form

I could be revising
you could be revising
he could be revising
we could be revising
you could be revising
they could be revising

Perfect

I could have revised
you could have revised
he could have revised
we could have revised
you could have revised
they could have revised

V-ing perfect

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

Negation

Simple form

I couldn't revise
you couldn't revise
he couldn't revise
we couldn't revise
you couldn't revise
they couldn't revise

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I revise?
could you revise?
could he revise?
could we revise?
could you revise?
could they revise?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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