English verb conjugation COULD PERCEIVE

Regular verb: perceive - perceived - perceived

Affirmation

Simple form

I could perceive
you could perceive
he could perceive
we could perceive
you could perceive
they could perceive

V-ing form

I could be perceiving
you could be perceiving
he could be perceiving
we could be perceiving
you could be perceiving
they could be perceiving

Perfect

I could have perceived
you could have perceived
he could have perceived
we could have perceived
you could have perceived
they could have perceived

V-ing perfect

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

Negation

Simple form

I could not perceive
you could not perceive
he could not perceive
we could not perceive
you could not perceive
they could not perceive

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I perceive?
could you perceive?
could he perceive?
could we perceive?
could you perceive?
could they perceive?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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