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