I ought to heat you ought to heat she ought to heat we ought to heat you ought to heat they ought to heat
V-ing form
I ought to be heating you ought to be heating she ought to be heating we ought to be heating you ought to be heating they ought to be heating
Perfect
I ought to have heated you ought to have heated she ought to have heated we ought to have heated you ought to have heated they ought to have heated
V-ing perfect
I ought to have been heating you ought to have been heating she ought to have been heating we ought to have been heating you ought to have been heating they ought to have been heating
Negation
Simple form
I oughtn't to heat you oughtn't to heat she oughtn't to heat we oughtn't to heat you oughtn't to heat they oughtn't to heat
V-ing form
I oughtn't to be heating you oughtn't to be heating she oughtn't to be heating we oughtn't to be heating you oughtn't to be heating they oughtn't to be heating
Perfect
I oughtn't to have heated you oughtn't to have heated she oughtn't to have heated we oughtn't to have heated you oughtn't to have heated they oughtn't to have heated
V-ing perfect
I oughtn't to have been heating you oughtn't to have been heating she oughtn't to have been heating we oughtn't to have been heating you oughtn't to have been heating they oughtn't to have been heating
Interrogative form
Simple form
ought to I heat? ought to you heat? ought to she heat? ought to we heat? ought to you heat? ought to they heat?
V-ing form
ought to I be heating? ought to you be heating? ought to she be heating? ought to we be heating? ought to you be heating? ought to they be heating?
Perfect
ought to I have heated? ought to you have heated? ought to she have heated? ought to we have heated? ought to you have heated? ought to they have heated?
V-ing perfect
ought to I have been heating? ought to you have been heating? ought to she have been heating? ought to we have been heating? ought to you have been heating? ought to they have been heating?
Interro-negative form
Simple form
oughtn't I to heat? oughtn't you to heat? oughtn't she to heat? oughtn't we to heat? oughtn't you to heat? oughtn't they to heat?
V-ing form
oughtn't I to be heating? oughtn't you to be heating? oughtn't she to be heating? oughtn't we to be heating? oughtn't you to be heating? oughtn't they to be heating?
Perfect
oughtn't I to have heated? oughtn't you to have heated? oughtn't she to have heated? oughtn't we to have heated? oughtn't you to have heated? oughtn't they to have heated?
V-ing perfect
oughtn't I to have been heating? oughtn't you to have been heating? oughtn't she to have been heating? oughtn't we to have been heating? oughtn't you to have been heating? oughtn't they to have been heating?