should nigh
Regular verb: nigh - nighed- nighed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd nigh
you'd nigh
he'd nigh
we'd nigh
you'd nigh
they'd nigh 	I'd be nighing
you'd be nighing
he'd be nighing
we'd be nighing
you'd be nighing
they'd be nighing	I should've nighed
you should've nighed
he should've nighed
we should've nighed
you should've nighed
they should've nighed	I should've been nighing
you should've been nighing
he should've been nighing
we should've been nighing
you should've been nighing
they should've been nighing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't nigh
you shouldn't nigh
he shouldn't nigh
we shouldn't nigh
you shouldn't nigh
they shouldn't nigh 	I shouldn't be nighing
you shouldn't be nighing
he shouldn't be nighing
we shouldn't be nighing
you shouldn't be nighing
they shouldn't be nighing	I shouldn't have nighed
you shouldn't have nighed
he shouldn't have nighed
we shouldn't have nighed
you shouldn't have nighed
they shouldn't have nighed	I shouldn't have been nighing
you shouldn't have been nighing
he shouldn't have been nighing
we shouldn't have been nighing
you shouldn't have been nighing
they shouldn't have been nighing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I nigh?
should you nigh?
should he nigh?
should we nigh?
should you nigh?
should they nigh? 	should I be nighing?
should you be nighing?
should he be nighing?
should we be nighing?
should you be nighing?
should they be nighing? 	should I have nighed?
should you have nighed?
should he have nighed?
should we have nighed?
should you have nighed?
should they have nighed? 	should I have been nighing?
should you have been nighing?
should he have been nighing?
should we have been nighing?
should you have been nighing?
should they have been nighing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I nigh?
shouldn't you nigh?
shouldn't he nigh?
shouldn't we nigh?
shouldn't you nigh?
shouldn't they nigh? 	shouldn't I be nighing?
shouldn't you be nighing?
shouldn't he be nighing?
shouldn't we be nighing?
shouldn't you be nighing?
shouldn't they be nighing? 	shouldn't I have nighed?
shouldn't you have nighed?
shouldn't he have nighed?
shouldn't we have nighed?
shouldn't you have nighed?
shouldn't they have nighed? 	shouldn't I have been nighing?
shouldn't you have been nighing?
shouldn't he have been nighing?
shouldn't we have been nighing?
shouldn't you have been nighing?
shouldn't they have been nighing?