I should differentiate you should differentiate she should differentiate we should differentiate you should differentiate they should differentiate
V-ing form
I should be differentiating you should be differentiating she should be differentiating we should be differentiating you should be differentiating they should be differentiating
Perfect
I should have differentiated you should have differentiated she 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 she 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 she 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 she 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 she 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 she 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 she differentiate? should we differentiate? should you differentiate? should they differentiate?
V-ing form
should I be differentiating? should you be differentiating? should she be differentiating? should we be differentiating? should you be differentiating? should they be differentiating?
Perfect
should I have differentiated? should you have differentiated? should she 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 she 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 she 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 she 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 she 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 she not have been differentiating? should we not have been differentiating? should you not have been differentiating? should they not have been differentiating?