I should differentiate you should differentiate he should differentiate we should differentiate you should differentiate they should differentiate
V-ing form
I should be differentiating you should be differentiating he should be differentiating we should be differentiating you should be differentiating they should be differentiating
Perfect
I should have differentiated you should have differentiated he should have differentiated we should have differentiated you should have differentiated they should have differentiated
V-ing perfect
I should have been differentiating you should have been differentiating he should have been differentiating we should have been differentiating you should have been differentiating they should have been differentiating
Negation
Simple form
I should not differentiate you should not differentiate he should not differentiate we should not differentiate you should not differentiate they should not differentiate
V-ing form
I should not be differentiating you should not be differentiating he should not be differentiating we should not be differentiating you should not be differentiating they should not be differentiating
Perfect
I should not have differentiated you should not have differentiated he should not have differentiated we should not have differentiated you should not have differentiated they should not have differentiated
V-ing perfect
I should not have been differentiating you should not have been differentiating he should not have been differentiating we should not have been differentiating you should not have been differentiating they should not have been differentiating
Interrogative form
Simple form
should I differentiate? should you differentiate? should he differentiate? should we differentiate? should you differentiate? should they differentiate?
V-ing form
should I be differentiating? should you be differentiating? should he be differentiating? should we be differentiating? should you be differentiating? should they be differentiating?
Perfect
should I have differentiated? should you have differentiated? should he have differentiated? should we have differentiated? should you have differentiated? should they have differentiated?
V-ing perfect
should I have been differentiating? should you have been differentiating? should he have been differentiating? should we have been differentiating? should you have been differentiating? should they have been differentiating?
Interro-negative form
Simple form
should I not differentiate? should you not differentiate? should he not differentiate? should we not differentiate? should you not differentiate? should they not differentiate?
V-ing form
should I not be differentiating? should you not be differentiating? should he not be differentiating? should we not be differentiating? should you not be differentiating? should they not be differentiating?
Perfect
should I not have differentiated? should you not have differentiated? should he not have differentiated? should we not have differentiated? should you not have differentiated? should they not have differentiated?
V-ing perfect
should I not have been differentiating? should you not have been differentiating? should he not have been differentiating? should we not have been differentiating? should you not have been differentiating? should they not have been differentiating?