I ought to milk you ought to milk she 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 she 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 she 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 she 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 ought not to milk you ought not to milk she ought not to milk we ought not to milk you ought not to milk they ought not to milk
V-ing form
I ought not to milking you ought not to milking she ought not to milking we ought not to milking you ought not to milking they ought not to milking
Perfect
I ought not to have milked you ought not to have milked she ought not to have milked we ought not to have milked you ought not to have milked they ought not to have milked
V-ing perfect
I ought not to have been milking you ought not to have been milking she ought not to have been milking we ought not to have been milking you ought not to have been milking they ought not to have been milking
Interrogative form
Simple form
ought to I milk? ought to you milk? ought to she 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 she 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 she 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 she 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
ought I not to milk? ought you not to milk? ought she not to milk? ought we not to milk? ought you not to milk? ought they not to milk?
V-ing form
ought I not to be milking? ought you not to be milking? ought she not to be milking? ought we not to be milking? ought you not to be milking? ought they not to be milking?
Perfect
ought I not to have milked? ought you not to have milked? ought she not to have milked? ought we not to have milked? ought you not to have milked? ought they not to have milked?
V-ing perfect
ought I not to have been milking? ought you not to have been milking? ought she not to have been milking? ought we not to have been milking? ought you not to have been milking? ought they not to have been milking?