English verb conjugation CAN CURTAIN

Regular verb: curtain - curtained - curtained

Affirmation

Simple form

I can curtain
you can curtain
he can curtain
we can curtain
you can curtain
they can curtain

V-ing form

I can be curtaining
you can be curtaining
he can be curtaining
we can be curtaining
you can be curtaining
they can be curtaining

Perfect

I can have curtained
you can have curtained
he can have curtained
we can have curtained
you can have curtained
they can have curtained

V-ing perfect

I can have been curtaining
you can have been curtaining
he can have been curtaining
we can have been curtaining
you can have been curtaining
they can have been curtaining

Negation

Simple form

I can't curtain
you can't curtain
he can't curtain
we can't curtain
you can't curtain
they can't curtain

V-ing form

I can't be curtaining
you can't be curtaining
he can't be curtaining
we can't be curtaining
you can't be curtaining
they can't be curtaining

Perfect

I can't have curtained
you can't have curtained
he can't have curtained
we can't have curtained
you can't have curtained
they can't have curtained

V-ing perfect

I can't have been curtaining
you can't have been curtaining
he can't have been curtaining
we can't have been curtaining
you can't have been curtaining
they can't have been curtaining

Interrogative form

Simple form

can I curtain?
can you curtain?
can he curtain?
can we curtain?
can you curtain?
can they curtain?

V-ing form

can I be curtaining?
can you be curtaining?
can he be curtaining?
can we be curtaining?
can you be curtaining?
can they be curtaining?

Perfect

can I have curtained?
can you have curtained?
can he have curtained?
can we have curtained?
can you have curtained?
can they have curtained?

V-ing perfect

can I have been curtaining?
can you have been curtaining?
can he have been curtaining?
can we have been curtaining?
can you have been curtaining?
can they have been curtaining?

Interro-negative form

Simple form

can't I curtain?
can't you curtain?
can't he curtain?
can't we curtain?
can't you curtain?
can't they curtain?

V-ing form

can't I be curtaining?
can't you be curtaining?
can't he be curtaining?
can't we be curtaining?
can't you be curtaining?
can't they be curtaining?

Perfect

can't I have curtained?
can't you have curtained?
can't he have curtained?
can't we have curtained?
can't you have curtained?
can't they have curtained?

V-ing perfect

can't I have been curtaining?
can't you have been curtaining?
can't he have been curtaining?
can't we have been curtaining?
can't you have been curtaining?
can't they have been curtaining?

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