I ought to cram you ought to cram he ought to cram we ought to cram you ought to cram they ought to cram
V-ing form
I ought to be cramming you ought to be cramming he ought to be cramming we ought to be cramming you ought to be cramming they ought to be cramming
Perfect
I ought to have crammed you ought to have crammed he ought to have crammed we ought to have crammed you ought to have crammed they ought to have crammed
V-ing perfect
I ought to have been cramming you ought to have been cramming he ought to have been cramming we ought to have been cramming you ought to have been cramming they ought to have been cramming
Negation
Simple form
I oughtn't to cram you oughtn't to cram he oughtn't to cram we oughtn't to cram you oughtn't to cram they oughtn't to cram
V-ing form
I oughtn't to be cramming you oughtn't to be cramming he oughtn't to be cramming we oughtn't to be cramming you oughtn't to be cramming they oughtn't to be cramming
Perfect
I oughtn't to have crammed you oughtn't to have crammed he oughtn't to have crammed we oughtn't to have crammed you oughtn't to have crammed they oughtn't to have crammed
V-ing perfect
I oughtn't to have been cramming you oughtn't to have been cramming he oughtn't to have been cramming we oughtn't to have been cramming you oughtn't to have been cramming they oughtn't to have been cramming
Interrogative form
Simple form
ought to I cram? ought to you cram? ought to he cram? ought to we cram? ought to you cram? ought to they cram?
V-ing form
ought to I be cramming? ought to you be cramming? ought to he be cramming? ought to we be cramming? ought to you be cramming? ought to they be cramming?
Perfect
ought to I have crammed? ought to you have crammed? ought to he have crammed? ought to we have crammed? ought to you have crammed? ought to they have crammed?
V-ing perfect
ought to I have been cramming? ought to you have been cramming? ought to he have been cramming? ought to we have been cramming? ought to you have been cramming? ought to they have been cramming?
Interro-negative form
Simple form
oughtn't I to cram? oughtn't you to cram? oughtn't he to cram? oughtn't we to cram? oughtn't you to cram? oughtn't they to cram?
V-ing form
oughtn't I to be cramming? oughtn't you to be cramming? oughtn't he to be cramming? oughtn't we to be cramming? oughtn't you to be cramming? oughtn't they to be cramming?
Perfect
oughtn't I to have crammed? oughtn't you to have crammed? oughtn't he to have crammed? oughtn't we to have crammed? oughtn't you to have crammed? oughtn't they to have crammed?
V-ing perfect
oughtn't I to have been cramming? oughtn't you to have been cramming? oughtn't he to have been cramming? oughtn't we to have been cramming? oughtn't you to have been cramming? oughtn't they to have been cramming?