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