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