I should persist you should persist she should persist we should persist you should persist they should persist
V-ing form
I should be persisting you should be persisting she should be persisting we should be persisting you should be persisting they should be persisting
Perfect
I should have persisted you should have persisted she should have persisted we should have persisted you should have persisted they should have persisted
V-ing perfect
I should have been persisting you should have been persisting she should have been persisting we should have been persisting you should have been persisting they should have been persisting
Negation
Simple form
I should not persist you should not persist she should not persist we should not persist you should not persist they should not persist
V-ing form
I should not be persisting you should not be persisting she should not be persisting we should not be persisting you should not be persisting they should not be persisting
Perfect
I should not have persisted you should not have persisted she should not have persisted we should not have persisted you should not have persisted they should not have persisted
V-ing perfect
I should not have been persisting you should not have been persisting she should not have been persisting we should not have been persisting you should not have been persisting they should not have been persisting
Interrogative form
Simple form
should I persist? should you persist? should she persist? should we persist? should you persist? should they persist?
V-ing form
should I be persisting? should you be persisting? should she be persisting? should we be persisting? should you be persisting? should they be persisting?
Perfect
should I have persisted? should you have persisted? should she have persisted? should we have persisted? should you have persisted? should they have persisted?
V-ing perfect
should I have been persisting? should you have been persisting? should she have been persisting? should we have been persisting? should you have been persisting? should they have been persisting?
Interro-negative form
Simple form
should I not persist? should you not persist? should she not persist? should we not persist? should you not persist? should they not persist?
V-ing form
should I not be persisting? should you not be persisting? should she not be persisting? should we not be persisting? should you not be persisting? should they not be persisting?
Perfect
should I not have persisted? should you not have persisted? should she not have persisted? should we not have persisted? should you not have persisted? should they not have persisted?
V-ing perfect
should I not have been persisting? should you not have been persisting? should she not have been persisting? should we not have been persisting? should you not have been persisting? should they not have been persisting?