English verb conjugation COULD PAPER

Regular verb: paper - papered - papered

Affirmation

Simple form

I could paper
you could paper
he could paper
we could paper
you could paper
they could paper

V-ing form

I could be papering
you could be papering
he could be papering
we could be papering
you could be papering
they could be papering

Perfect

I could have papered
you could have papered
he could have papered
we could have papered
you could have papered
they could have papered

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I paper?
could you paper?
could he paper?
could we paper?
could you paper?
could they paper?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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