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