I should stretch you should stretch he should stretch we should stretch you should stretch they should stretch
V-ing form
I should be stretching you should be stretching he should be stretching we should be stretching you should be stretching they should be stretching
Perfect
I should have stretched you should have stretched he should have stretched we should have stretched you should have stretched they should have stretched
V-ing perfect
I should have been stretching you should have been stretching he should have been stretching we should have been stretching you should have been stretching they should have been stretching
Negation
Simple form
I should not stretch you should not stretch he should not stretch we should not stretch you should not stretch they should not stretch
V-ing form
I should not be stretching you should not be stretching he should not be stretching we should not be stretching you should not be stretching they should not be stretching
Perfect
I should not have stretched you should not have stretched he should not have stretched we should not have stretched you should not have stretched they should not have stretched
V-ing perfect
I should not have been stretching you should not have been stretching he should not have been stretching we should not have been stretching you should not have been stretching they should not have been stretching
Interrogative form
Simple form
should I stretch? should you stretch? should he stretch? should we stretch? should you stretch? should they stretch?
V-ing form
should I be stretching? should you be stretching? should he be stretching? should we be stretching? should you be stretching? should they be stretching?
Perfect
should I have stretched? should you have stretched? should he have stretched? should we have stretched? should you have stretched? should they have stretched?
V-ing perfect
should I have been stretching? should you have been stretching? should he have been stretching? should we have been stretching? should you have been stretching? should they have been stretching?
Interro-negative form
Simple form
should I not stretch? should you not stretch? should he not stretch? should we not stretch? should you not stretch? should they not stretch?
V-ing form
should I not be stretching? should you not be stretching? should he not be stretching? should we not be stretching? should you not be stretching? should they not be stretching?
Perfect
should I not have stretched? should you not have stretched? should he not have stretched? should we not have stretched? should you not have stretched? should they not have stretched?
V-ing perfect
should I not have been stretching? should you not have been stretching? should he not have been stretching? should we not have been stretching? should you not have been stretching? should they not have been stretching?