English verb conjugation COULD NICHE

Regular verb: niche - niched - niched

Affirmation

Simple form

I could niche
you could niche
he could niche
we could niche
you could niche
they could niche

V-ing form

I could be niching
you could be niching
he could be niching
we could be niching
you could be niching
they could be niching

Perfect

I could have niched
you could have niched
he could have niched
we could have niched
you could have niched
they could have niched

V-ing perfect

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

Negation

Simple form

I could not niche
you could not niche
he could not niche
we could not niche
you could not niche
they could not niche

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I niche?
could you niche?
could he niche?
could we niche?
could you niche?
could they niche?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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