English verb conjugation COULD ABSTAIN

Regular verb: abstain - abstained - abstained

Affirmation

Simple form

I could abstain
you could abstain
he could abstain
we could abstain
you could abstain
they could abstain

V-ing form

I could be abstaining
you could be abstaining
he could be abstaining
we could be abstaining
you could be abstaining
they could be abstaining

Perfect

I could have abstained
you could have abstained
he could have abstained
we could have abstained
you could have abstained
they could have abstained

V-ing perfect

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

Negation

Simple form

I could not abstain
you could not abstain
he could not abstain
we could not abstain
you could not abstain
they could not abstain

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I abstain?
could you abstain?
could he abstain?
could we abstain?
could you abstain?
could they abstain?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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