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