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