English verb conjugation COULD PREEN

Regular verb: preen - preened - preened

Affirmation

Simple form

I could preen
you could preen
he could preen
we could preen
you could preen
they could preen

V-ing form

I could be preening
you could be preening
he could be preening
we could be preening
you could be preening
they could be preening

Perfect

I could have preened
you could have preened
he could have preened
we could have preened
you could have preened
they could have preened

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I preen?
could you preen?
could he preen?
could we preen?
could you preen?
could they preen?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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