should differentiate
Regular verb: differentiate - differentiated- differentiated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd differentiate
you'd differentiate
she'd differentiate
we'd differentiate
you'd differentiate
they'd differentiate 	I'd be differentiating
you'd be differentiating
she'd be differentiating
we'd be differentiating
you'd be differentiating
they'd be differentiating	I should've differentiated
you should've differentiated
she should've differentiated
we should've differentiated
you should've differentiated
they should've differentiated	I should've been differentiating
you should've been differentiating
she should've been differentiating
we should've been differentiating
you should've been differentiating
they should've been differentiating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't differentiate
you shouldn't differentiate
she shouldn't differentiate
we shouldn't differentiate
you shouldn't differentiate
they shouldn't differentiate 	I shouldn't be differentiating
you shouldn't be differentiating
she shouldn't be differentiating
we shouldn't be differentiating
you shouldn't be differentiating
they shouldn't be differentiating	I shouldn't have differentiated
you shouldn't have differentiated
she shouldn't have differentiated
we shouldn't have differentiated
you shouldn't have differentiated
they shouldn't have differentiated	I shouldn't have been differentiating
you shouldn't have been differentiating
she shouldn't have been differentiating
we shouldn't have been differentiating
you shouldn't have been differentiating
they shouldn't have been differentiating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I differentiate?
should you differentiate?
should she differentiate?
should we differentiate?
should you differentiate?
should they differentiate? 	should I be differentiating?
should you be differentiating?
should she be differentiating?
should we be differentiating?
should you be differentiating?
should they be differentiating? 	should I have differentiated?
should you have differentiated?
should she have differentiated?
should we have differentiated?
should you have differentiated?
should they have differentiated? 	should I have been differentiating?
should you have been differentiating?
should she have been differentiating?
should we have been differentiating?
should you have been differentiating?
should they have been differentiating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I differentiate?
shouldn't you differentiate?
shouldn't she differentiate?
shouldn't we differentiate?
shouldn't you differentiate?
shouldn't they differentiate? 	shouldn't I be differentiating?
shouldn't you be differentiating?
shouldn't she be differentiating?
shouldn't we be differentiating?
shouldn't you be differentiating?
shouldn't they be differentiating? 	shouldn't I have differentiated?
shouldn't you have differentiated?
shouldn't she have differentiated?
shouldn't we have differentiated?
shouldn't you have differentiated?
shouldn't they have differentiated? 	shouldn't I have been differentiating?
shouldn't you have been differentiating?
shouldn't she have been differentiating?
shouldn't we have been differentiating?
shouldn't you have been differentiating?
shouldn't they have been differentiating?