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