English verb conjugation
OUGHT TO KNURL

Regular verb: knurl - knurled - knurled

Affirmation

Simple form	V-ing form
I ought to knurl you ought to knurl he ought to knurl we ought to knurl you ought to knurl they ought to knurl	I ought to be knurling you ought to be knurling he ought to be knurling we ought to be knurling you ought to be knurling they ought to be knurling
Perfect	V-ing perfect
I ought to have knurled you ought to have knurled he ought to have knurled we ought to have knurled you ought to have knurled they ought to have knurled	I ought to have been knurling you ought to have been knurling he ought to have been knurling we ought to have been knurling you ought to have been knurling they ought to have been knurling

Negation

Simple form	V-ing form
I oughtn't to knurl you oughtn't to knurl he oughtn't to knurl we oughtn't to knurl you oughtn't to knurl they oughtn't to knurl	I oughtn't to be knurling you oughtn't to be knurling he oughtn't to be knurling we oughtn't to be knurling you oughtn't to be knurling they oughtn't to be knurling
Perfect	V-ing perfect
I oughtn't to have knurled you oughtn't to have knurled he oughtn't to have knurled we oughtn't to have knurled you oughtn't to have knurled they oughtn't to have knurled	I oughtn't to have been knurling you oughtn't to have been knurling he oughtn't to have been knurling we oughtn't to have been knurling you oughtn't to have been knurling they oughtn't to have been knurling

Interrogative form

Simple form	V-ing form
ought to I knurl? ought to you knurl? ought to he knurl? ought to we knurl? ought to you knurl? ought to they knurl?	ought to I be knurling? ought to you be knurling? ought to he be knurling? ought to we be knurling? ought to you be knurling? ought to they be knurling?
Perfect	V-ing perfect
ought to I have knurled? ought to you have knurled? ought to he have knurled? ought to we have knurled? ought to you have knurled? ought to they have knurled?	ought to I have been knurling? ought to you have been knurling? ought to he have been knurling? ought to we have been knurling? ought to you have been knurling? ought to they have been knurling?

Interro-negative form

Simple form	V-ing form
oughtn't I to knurl? oughtn't you to knurl? oughtn't he to knurl? oughtn't we to knurl? oughtn't you to knurl? oughtn't they to knurl?	oughtn't I to be knurling? oughtn't you to be knurling? oughtn't he to be knurling? oughtn't we to be knurling? oughtn't you to be knurling? oughtn't they to be knurling?
Perfect	V-ing perfect
oughtn't I to have knurled? oughtn't you to have knurled? oughtn't he to have knurled? oughtn't we to have knurled? oughtn't you to have knurled? oughtn't they to have knurled?	oughtn't I to have been knurling? oughtn't you to have been knurling? oughtn't he to have been knurling? oughtn't we to have been knurling? oughtn't you to have been knurling? oughtn't they to have been knurling?