English verb conjugation
OUGHT TO INTERFERE

Regular verb: interfere - interfered - interfered

Affirmation

Simple form	V-ing form
I ought to interfere you ought to interfere he ought to interfere we ought to interfere you ought to interfere they ought to interfere	I ought to be interfering you ought to be interfering he ought to be interfering we ought to be interfering you ought to be interfering they ought to be interfering
Perfect	V-ing perfect
I ought to have interfered you ought to have interfered he ought to have interfered we ought to have interfered you ought to have interfered they ought to have interfered	I ought to have been interfering you ought to have been interfering he ought to have been interfering we ought to have been interfering you ought to have been interfering they ought to have been interfering

Negation

Simple form	V-ing form
I oughtn't to interfere you oughtn't to interfere he oughtn't to interfere we oughtn't to interfere you oughtn't to interfere they oughtn't to interfere	I oughtn't to be interfering you oughtn't to be interfering he oughtn't to be interfering we oughtn't to be interfering you oughtn't to be interfering they oughtn't to be interfering
Perfect	V-ing perfect
I oughtn't to have interfered you oughtn't to have interfered he oughtn't to have interfered we oughtn't to have interfered you oughtn't to have interfered they oughtn't to have interfered	I oughtn't to have been interfering you oughtn't to have been interfering he oughtn't to have been interfering we oughtn't to have been interfering you oughtn't to have been interfering they oughtn't to have been interfering

Interrogative form

Simple form	V-ing form
ought to I interfere? ought to you interfere? ought to he interfere? ought to we interfere? ought to you interfere? ought to they interfere?	ought to I be interfering? ought to you be interfering? ought to he be interfering? ought to we be interfering? ought to you be interfering? ought to they be interfering?
Perfect	V-ing perfect
ought to I have interfered? ought to you have interfered? ought to he have interfered? ought to we have interfered? ought to you have interfered? ought to they have interfered?	ought to I have been interfering? ought to you have been interfering? ought to he have been interfering? ought to we have been interfering? ought to you have been interfering? ought to they have been interfering?

Interro-negative form

Simple form	V-ing form
oughtn't I to interfere? oughtn't you to interfere? oughtn't he to interfere? oughtn't we to interfere? oughtn't you to interfere? oughtn't they to interfere?	oughtn't I to be interfering? oughtn't you to be interfering? oughtn't he to be interfering? oughtn't we to be interfering? oughtn't you to be interfering? oughtn't they to be interfering?
Perfect	V-ing perfect
oughtn't I to have interfered? oughtn't you to have interfered? oughtn't he to have interfered? oughtn't we to have interfered? oughtn't you to have interfered? oughtn't they to have interfered?	oughtn't I to have been interfering? oughtn't you to have been interfering? oughtn't he to have been interfering? oughtn't we to have been interfering? oughtn't you to have been interfering? oughtn't they to have been interfering?