I ought to mow you ought to mow she ought to mow we ought to mow you ought to mow they ought to mow
V-ing form
I ought to be mowing you ought to be mowing she ought to be mowing we ought to be mowing you ought to be mowing they ought to be mowing
Perfect
I ought to have mown you ought to have mown she ought to have mown we ought to have mown you ought to have mown they ought to have mown
V-ing perfect
I ought to have been mowing you ought to have been mowing she ought to have been mowing we ought to have been mowing you ought to have been mowing they ought to have been mowing
Negation
Simple form
I ought not to mow you ought not to mow she ought not to mow we ought not to mow you ought not to mow they ought not to mow
V-ing form
I ought not to mowing you ought not to mowing she ought not to mowing we ought not to mowing you ought not to mowing they ought not to mowing
Perfect
I ought not to have mown you ought not to have mown she ought not to have mown we ought not to have mown you ought not to have mown they ought not to have mown
V-ing perfect
I ought not to have been mowing you ought not to have been mowing she ought not to have been mowing we ought not to have been mowing you ought not to have been mowing they ought not to have been mowing
Interrogative form
Simple form
ought to I mow? ought to you mow? ought to she mow? ought to we mow? ought to you mow? ought to they mow?
V-ing form
ought to I be mowing? ought to you be mowing? ought to she be mowing? ought to we be mowing? ought to you be mowing? ought to they be mowing?
Perfect
ought to I have mown? ought to you have mown? ought to she have mown? ought to we have mown? ought to you have mown? ought to they have mown?
V-ing perfect
ought to I have been mowing? ought to you have been mowing? ought to she have been mowing? ought to we have been mowing? ought to you have been mowing? ought to they have been mowing?
Interro-negative form
Simple form
ought I not to mow? ought you not to mow? ought she not to mow? ought we not to mow? ought you not to mow? ought they not to mow?
V-ing form
ought I not to be mowing? ought you not to be mowing? ought she not to be mowing? ought we not to be mowing? ought you not to be mowing? ought they not to be mowing?
Perfect
ought I not to have mown? ought you not to have mown? ought she not to have mown? ought we not to have mown? ought you not to have mown? ought they not to have mown?
V-ing perfect
ought I not to have been mowing? ought you not to have been mowing? ought she not to have been mowing? ought we not to have been mowing? ought you not to have been mowing? ought they not to have been mowing?