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