English verb conjugation COULD PERISH

Regular verb: perish - perished - perished

Affirmation

Simple form

I could perish
you could perish
he could perish
we could perish
you could perish
they could perish

V-ing form

I could be perishing
you could be perishing
he could be perishing
we could be perishing
you could be perishing
they could be perishing

Perfect

I could have perished
you could have perished
he could have perished
we could have perished
you could have perished
they could have perished

V-ing perfect

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

Negation

Simple form

I could not perish
you could not perish
he could not perish
we could not perish
you could not perish
they could not perish

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I perish?
could you perish?
could he perish?
could we perish?
could you perish?
could they perish?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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