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