should black
Regular verb: black - blacked- blacked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd black
you'd black
she'd black
we'd black
you'd black
they'd black 	I'd be blacking
you'd be blacking
she'd be blacking
we'd be blacking
you'd be blacking
they'd be blacking	I should've blacked
you should've blacked
she should've blacked
we should've blacked
you should've blacked
they should've blacked	I should've been blacking
you should've been blacking
she should've been blacking
we should've been blacking
you should've been blacking
they should've been blacking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't black
you shouldn't black
she shouldn't black
we shouldn't black
you shouldn't black
they shouldn't black 	I shouldn't be blacking
you shouldn't be blacking
she shouldn't be blacking
we shouldn't be blacking
you shouldn't be blacking
they shouldn't be blacking	I shouldn't have blacked
you shouldn't have blacked
she shouldn't have blacked
we shouldn't have blacked
you shouldn't have blacked
they shouldn't have blacked	I shouldn't have been blacking
you shouldn't have been blacking
she shouldn't have been blacking
we shouldn't have been blacking
you shouldn't have been blacking
they shouldn't have been blacking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I black?
should you black?
should she black?
should we black?
should you black?
should they black? 	should I be blacking?
should you be blacking?
should she be blacking?
should we be blacking?
should you be blacking?
should they be blacking? 	should I have blacked?
should you have blacked?
should she have blacked?
should we have blacked?
should you have blacked?
should they have blacked? 	should I have been blacking?
should you have been blacking?
should she have been blacking?
should we have been blacking?
should you have been blacking?
should they have been blacking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I black?
shouldn't you black?
shouldn't she black?
shouldn't we black?
shouldn't you black?
shouldn't they black? 	shouldn't I be blacking?
shouldn't you be blacking?
shouldn't she be blacking?
shouldn't we be blacking?
shouldn't you be blacking?
shouldn't they be blacking? 	shouldn't I have blacked?
shouldn't you have blacked?
shouldn't she have blacked?
shouldn't we have blacked?
shouldn't you have blacked?
shouldn't they have blacked? 	shouldn't I have been blacking?
shouldn't you have been blacking?
shouldn't she have been blacking?
shouldn't we have been blacking?
shouldn't you have been blacking?
shouldn't they have been blacking?