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