should niche
Regular verb: niche - niched- niched

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd niche
you'd niche
she'd niche
we'd niche
you'd niche
they'd niche 	I'd be niching
you'd be niching
she'd be niching
we'd be niching
you'd be niching
they'd be niching	I should've niched
you should've niched
she should've niched
we should've niched
you should've niched
they should've niched	I should've been niching
you should've been niching
she should've been niching
we should've been niching
you should've been niching
they should've been niching	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't niche
you shouldn't niche
she shouldn't niche
we shouldn't niche
you shouldn't niche
they shouldn't niche 	I shouldn't be niching
you shouldn't be niching
she shouldn't be niching
we shouldn't be niching
you shouldn't be niching
they shouldn't be niching	I shouldn't have niched
you shouldn't have niched
she shouldn't have niched
we shouldn't have niched
you shouldn't have niched
they shouldn't have niched	I shouldn't have been niching
you shouldn't have been niching
she shouldn't have been niching
we shouldn't have been niching
you shouldn't have been niching
they shouldn't have been niching	

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

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I niche?
shouldn't you niche?
shouldn't she niche?
shouldn't we niche?
shouldn't you niche?
shouldn't they niche? 	shouldn't I be niching?
shouldn't you be niching?
shouldn't she be niching?
shouldn't we be niching?
shouldn't you be niching?
shouldn't they be niching? 	shouldn't I have niched?
shouldn't you have niched?
shouldn't she have niched?
shouldn't we have niched?
shouldn't you have niched?
shouldn't they have niched? 	shouldn't I have been niching?
shouldn't you have been niching?
shouldn't she have been niching?
shouldn't we have been niching?
shouldn't you have been niching?
shouldn't they have been niching?