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