English verb conjugation
COULD NICHE

Regular verb: niche - niched - niched

Affirmation

Simple form	V-ing form
I could niche you could niche she could niche we could niche you could niche they could niche	I could be niching you could be niching she could be niching we could be niching you could be niching they could be niching
Perfect	V-ing perfect
I could have niched you could have niched she could have niched we could have niched you could have niched they could have niched	I could have been niching you could have been niching she could have been niching we could have been niching you could have been niching they could have been niching

Negation

Simple form	V-ing form
I could not niche you could not niche she could not niche we could not niche you could not niche they could not niche	I could not be niching you could not be niching she could not be niching we could not be niching you could not be niching they could not be niching
Perfect	V-ing perfect
I could not have niched you could not have niched she could not have niched we could not have niched you could not have niched they could not have niched	I could not have been niching you could not have been niching she 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	V-ing form
could I niche? could you niche? could she niche? could we niche? could you niche? could they niche?	could I be niching? could you be niching? could she be niching? could we be niching? could you be niching? could they be niching?
Perfect	V-ing perfect
could I have niched? could you have niched? could she have niched? could we have niched? could you have niched? could they have niched?	could I have been niching? could you have been niching? could she have been niching? could we have been niching? could you have been niching? could they have been niching?

Interro-negative form

Simple form	V-ing form
could I not niche? could you not niche? could she not niche? could we not niche? could you not niche? could they not niche?	could I not be niching? could you not be niching? could she not be niching? could we not be niching? could you not be niching? could they not be niching?
Perfect	V-ing perfect
could I not have niched? could you not have niched? could she not have niched? could we not have niched? could you not have niched? could they not have niched?	could I not have been niching? could you not have been niching? could she not have been niching? could we not have been niching? could you not have been niching? could they not have been niching?