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 couldn't perceive
you couldn't perceive
he couldn't perceive
we couldn't perceive
you couldn't perceive
they couldn't perceive

V-ing form

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

Perfect

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

V-ing perfect

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

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

V-ing form

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

Perfect

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

V-ing perfect

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

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