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