English verb conjugation COULD PERCH

Regular verb: perch - perched - perched

Affirmation

Simple form

I could perch
you could perch
he could perch
we could perch
you could perch
they could perch

V-ing form

I could be perching
you could be perching
he could be perching
we could be perching
you could be perching
they could be perching

Perfect

I could have perched
you could have perched
he could have perched
we could have perched
you could have perched
they could have perched

V-ing perfect

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

Negation

Simple form

I could not perch
you could not perch
he could not perch
we could not perch
you could not perch
they could not perch

V-ing form

I could not be perching
you could not be perching
he could not be perching
we could not be perching
you could not be perching
they could not be perching

Perfect

I could not have perched
you could not have perched
he could not have perched
we could not have perched
you could not have perched
they could not have perched

V-ing perfect

I could not have been perching
you could not have been perching
he could not have been perching
we could not have been perching
you could not have been perching
they could not have been perching

Interrogative form

Simple form

could I perch?
could you perch?
could he perch?
could we perch?
could you perch?
could they perch?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

could I not perch?
could you not perch?
could he not perch?
could we not perch?
could you not perch?
could they not perch?

V-ing form

could I not be perching?
could you not be perching?
could he not be perching?
could we not be perching?
could you not be perching?
could they not be perching?

Perfect

could I not have perched?
could you not have perched?
could he not have perched?
could we not have perched?
could you not have perched?
could they not have perched?

V-ing perfect

could I not have been perching?
could you not have been perching?
could he not have been perching?
could we not have been perching?
could you not have been perching?
could they not have been perching?

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