I ought to doubt you ought to doubt he 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 he 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 he 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 he 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 ought not to doubt you ought not to doubt he ought not to doubt we ought not to doubt you ought not to doubt they ought not to doubt
V-ing form
I ought not to doubting you ought not to doubting he ought not to doubting we ought not to doubting you ought not to doubting they ought not to doubting
Perfect
I ought not to have doubted you ought not to have doubted he ought not to have doubted we ought not to have doubted you ought not to have doubted they ought not to have doubted
V-ing perfect
I ought not to have been doubting you ought not to have been doubting he ought not to have been doubting we ought not to have been doubting you ought not to have been doubting they ought not to have been doubting
Interrogative form
Simple form
ought to I doubt? ought to you doubt? ought to he 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 he 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 he 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 he 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
ought I not to doubt? ought you not to doubt? ought he not to doubt? ought we not to doubt? ought you not to doubt? ought they not to doubt?
V-ing form
ought I not to be doubting? ought you not to be doubting? ought he not to be doubting? ought we not to be doubting? ought you not to be doubting? ought they not to be doubting?
Perfect
ought I not to have doubted? ought you not to have doubted? ought he not to have doubted? ought we not to have doubted? ought you not to have doubted? ought they not to have doubted?
V-ing perfect
ought I not to have been doubting? ought you not to have been doubting? ought he not to have been doubting? ought we not to have been doubting? ought you not to have been doubting? ought they not to have been doubting?