I ought to revise you ought to revise she ought to revise we ought to revise you ought to revise they ought to revise
V-ing form
I ought to be revising you ought to be revising she ought to be revising we ought to be revising you ought to be revising they ought to be revising
Perfect
I ought to have revised you ought to have revised she ought to have revised we ought to have revised you ought to have revised they ought to have revised
V-ing perfect
I ought to have been revising you ought to have been revising she ought to have been revising we ought to have been revising you ought to have been revising they ought to have been revising
Negation
Simple form
I oughtn't to revise you oughtn't to revise she oughtn't to revise we oughtn't to revise you oughtn't to revise they oughtn't to revise
V-ing form
I oughtn't to be revising you oughtn't to be revising she oughtn't to be revising we oughtn't to be revising you oughtn't to be revising they oughtn't to be revising
Perfect
I oughtn't to have revised you oughtn't to have revised she oughtn't to have revised we oughtn't to have revised you oughtn't to have revised they oughtn't to have revised
V-ing perfect
I oughtn't to have been revising you oughtn't to have been revising she oughtn't to have been revising we oughtn't to have been revising you oughtn't to have been revising they oughtn't to have been revising
Interrogative form
Simple form
ought to I revise? ought to you revise? ought to she revise? ought to we revise? ought to you revise? ought to they revise?
V-ing form
ought to I be revising? ought to you be revising? ought to she be revising? ought to we be revising? ought to you be revising? ought to they be revising?
Perfect
ought to I have revised? ought to you have revised? ought to she have revised? ought to we have revised? ought to you have revised? ought to they have revised?
V-ing perfect
ought to I have been revising? ought to you have been revising? ought to she have been revising? ought to we have been revising? ought to you have been revising? ought to they have been revising?
Interro-negative form
Simple form
oughtn't I to revise? oughtn't you to revise? oughtn't she to revise? oughtn't we to revise? oughtn't you to revise? oughtn't they to revise?
V-ing form
oughtn't I to be revising? oughtn't you to be revising? oughtn't she to be revising? oughtn't we to be revising? oughtn't you to be revising? oughtn't they to be revising?
Perfect
oughtn't I to have revised? oughtn't you to have revised? oughtn't she to have revised? oughtn't we to have revised? oughtn't you to have revised? oughtn't they to have revised?
V-ing perfect
oughtn't I to have been revising? oughtn't you to have been revising? oughtn't she to have been revising? oughtn't we to have been revising? oughtn't you to have been revising? oughtn't they to have been revising?