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 couldn't niche you couldn't niche she couldn't niche we couldn't niche you couldn't niche they couldn't niche	I couldn't be niching you couldn't be niching she couldn't be niching we couldn't be niching you couldn't be niching they couldn't be niching
Perfect	V-ing perfect
I couldn't have niched you couldn't have niched she couldn't have niched we couldn't have niched you couldn't have niched they couldn't have niched	I couldn't have been niching you couldn't have been niching she couldn't have been niching we couldn't have been niching you couldn't have been niching they couldn't 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
couldn't I niche? couldn't you niche? couldn't she niche? couldn't we niche? couldn't you niche? couldn't they niche?	couldn't I be niching? couldn't you be niching? couldn't she be niching? couldn't we be niching? couldn't you be niching? couldn't they be niching?
Perfect	V-ing perfect
couldn't I have niched? couldn't you have niched? couldn't she have niched? couldn't we have niched? couldn't you have niched? couldn't they have niched?	couldn't I have been niching? couldn't you have been niching? couldn't she have been niching? couldn't we have been niching? couldn't you have been niching? couldn't they have been niching?