English verb conjugation COULD PIERCE

Regular verb: pierce - pierced - pierced

Affirmation

Simple form

I could pierce
you could pierce
he could pierce
we could pierce
you could pierce
they could pierce

V-ing form

I could be piercing
you could be piercing
he could be piercing
we could be piercing
you could be piercing
they could be piercing

Perfect

I could have pierced
you could have pierced
he could have pierced
we could have pierced
you could have pierced
they could have pierced

V-ing perfect

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

Negation

Simple form

I could not pierce
you could not pierce
he could not pierce
we could not pierce
you could not pierce
they could not pierce

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I pierce?
could you pierce?
could he pierce?
could we pierce?
could you pierce?
could they pierce?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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