I should cram you should cram he should cram we should cram you should cram they should cram
V-ing form
I should be cramming you should be cramming he should be cramming we should be cramming you should be cramming they should be cramming
Perfect
I should have crammed you should have crammed he should have crammed we should have crammed you should have crammed they should have crammed
V-ing perfect
I should have been cramming you should have been cramming he should have been cramming we should have been cramming you should have been cramming they should have been cramming
Negation
Simple form
I should not cram you should not cram he should not cram we should not cram you should not cram they should not cram
V-ing form
I should not be cramming you should not be cramming he should not be cramming we should not be cramming you should not be cramming they should not be cramming
Perfect
I should not have crammed you should not have crammed he should not have crammed we should not have crammed you should not have crammed they should not have crammed
V-ing perfect
I should not have been cramming you should not have been cramming he should not have been cramming we should not have been cramming you should not have been cramming they should not have been cramming
Interrogative form
Simple form
should I cram? should you cram? should he cram? should we cram? should you cram? should they cram?
V-ing form
should I be cramming? should you be cramming? should he be cramming? should we be cramming? should you be cramming? should they be cramming?
Perfect
should I have crammed? should you have crammed? should he have crammed? should we have crammed? should you have crammed? should they have crammed?
V-ing perfect
should I have been cramming? should you have been cramming? should he have been cramming? should we have been cramming? should you have been cramming? should they have been cramming?
Interro-negative form
Simple form
should I not cram? should you not cram? should he not cram? should we not cram? should you not cram? should they not cram?
V-ing form
should I not be cramming? should you not be cramming? should he not be cramming? should we not be cramming? should you not be cramming? should they not be cramming?
Perfect
should I not have crammed? should you not have crammed? should he not have crammed? should we not have crammed? should you not have crammed? should they not have crammed?
V-ing perfect
should I not have been cramming? should you not have been cramming? should he not have been cramming? should we not have been cramming? should you not have been cramming? should they not have been cramming?