English verb conjugation COULD QUOIN

Regular verb: quoin - quoined - quoined

Affirmation

Simple form

I could quoin
you could quoin
he could quoin
we could quoin
you could quoin
they could quoin

V-ing form

I could be quoining
you could be quoining
he could be quoining
we could be quoining
you could be quoining
they could be quoining

Perfect

I could have quoined
you could have quoined
he could have quoined
we could have quoined
you could have quoined
they could have quoined

V-ing perfect

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

Negation

Simple form

I could not quoin
you could not quoin
he could not quoin
we could not quoin
you could not quoin
they could not quoin

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I quoin?
could you quoin?
could he quoin?
could we quoin?
could you quoin?
could they quoin?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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