I should countercheck you should countercheck she should countercheck we should countercheck you should countercheck they should countercheck
V-ing form
I should be counterchecking you should be counterchecking she should be counterchecking we should be counterchecking you should be counterchecking they should be counterchecking
Perfect
I should have counterchecked you should have counterchecked she should have counterchecked we should have counterchecked you should have counterchecked they should have counterchecked
V-ing perfect
I should have been counterchecking you should have been counterchecking she should have been counterchecking we should have been counterchecking you should have been counterchecking they should have been counterchecking
Negation
Simple form
I should not countercheck you should not countercheck she should not countercheck we should not countercheck you should not countercheck they should not countercheck
V-ing form
I should not be counterchecking you should not be counterchecking she should not be counterchecking we should not be counterchecking you should not be counterchecking they should not be counterchecking
Perfect
I should not have counterchecked you should not have counterchecked she should not have counterchecked we should not have counterchecked you should not have counterchecked they should not have counterchecked
V-ing perfect
I should not have been counterchecking you should not have been counterchecking she should not have been counterchecking we should not have been counterchecking you should not have been counterchecking they should not have been counterchecking
Interrogative form
Simple form
should I countercheck? should you countercheck? should she countercheck? should we countercheck? should you countercheck? should they countercheck?
V-ing form
should I be counterchecking? should you be counterchecking? should she be counterchecking? should we be counterchecking? should you be counterchecking? should they be counterchecking?
Perfect
should I have counterchecked? should you have counterchecked? should she have counterchecked? should we have counterchecked? should you have counterchecked? should they have counterchecked?
V-ing perfect
should I have been counterchecking? should you have been counterchecking? should she have been counterchecking? should we have been counterchecking? should you have been counterchecking? should they have been counterchecking?
Interro-negative form
Simple form
should I not countercheck? should you not countercheck? should she not countercheck? should we not countercheck? should you not countercheck? should they not countercheck?
V-ing form
should I not be counterchecking? should you not be counterchecking? should she not be counterchecking? should we not be counterchecking? should you not be counterchecking? should they not be counterchecking?
Perfect
should I not have counterchecked? should you not have counterchecked? should she not have counterchecked? should we not have counterchecked? should you not have counterchecked? should they not have counterchecked?
V-ing perfect
should I not have been counterchecking? should you not have been counterchecking? should she not have been counterchecking? should we not have been counterchecking? should you not have been counterchecking? should they not have been counterchecking?