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 oughtn't to mow you oughtn't to mow she oughtn't to mow we oughtn't to mow you oughtn't to mow they oughtn't to mow
V-ing form
I oughtn't to be mowing you oughtn't to be mowing she oughtn't to be mowing we oughtn't to be mowing you oughtn't to be mowing they oughtn't to be mowing
Perfect
I oughtn't to have mown you oughtn't to have mown she oughtn't to have mown we oughtn't to have mown you oughtn't to have mown they oughtn't to have mown
V-ing perfect
I oughtn't to have been mowing you oughtn't to have been mowing she oughtn't to have been mowing we oughtn't to have been mowing you oughtn't to have been mowing they oughtn't 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
oughtn't I to mow? oughtn't you to mow? oughtn't she to mow? oughtn't we to mow? oughtn't you to mow? oughtn't they to mow?
V-ing form
oughtn't I to be mowing? oughtn't you to be mowing? oughtn't she to be mowing? oughtn't we to be mowing? oughtn't you to be mowing? oughtn't they to be mowing?
Perfect
oughtn't I to have mown? oughtn't you to have mown? oughtn't she to have mown? oughtn't we to have mown? oughtn't you to have mown? oughtn't they to have mown?
V-ing perfect
oughtn't I to have been mowing? oughtn't you to have been mowing? oughtn't she to have been mowing? oughtn't we to have been mowing? oughtn't you to have been mowing? oughtn't they to have been mowing?