English verb conjugation
OUGHT TO PURL

Regular verb: purl - purled - purled

Affirmation

Simple form	V-ing form
I ought to purl you ought to purl she ought to purl we ought to purl you ought to purl they ought to purl	I ought to be purling you ought to be purling she ought to be purling we ought to be purling you ought to be purling they ought to be purling
Perfect	V-ing perfect
I ought to have purled you ought to have purled she ought to have purled we ought to have purled you ought to have purled they ought to have purled	I ought to have been purling you ought to have been purling she ought to have been purling we ought to have been purling you ought to have been purling they ought to have been purling

Negation

Simple form	V-ing form
I oughtn't to purl you oughtn't to purl she oughtn't to purl we oughtn't to purl you oughtn't to purl they oughtn't to purl	I oughtn't to be purling you oughtn't to be purling she oughtn't to be purling we oughtn't to be purling you oughtn't to be purling they oughtn't to be purling
Perfect	V-ing perfect
I oughtn't to have purled you oughtn't to have purled she oughtn't to have purled we oughtn't to have purled you oughtn't to have purled they oughtn't to have purled	I oughtn't to have been purling you oughtn't to have been purling she oughtn't to have been purling we oughtn't to have been purling you oughtn't to have been purling they oughtn't to have been purling

Interrogative form

Simple form	V-ing form
ought to I purl? ought to you purl? ought to she purl? ought to we purl? ought to you purl? ought to they purl?	ought to I be purling? ought to you be purling? ought to she be purling? ought to we be purling? ought to you be purling? ought to they be purling?
Perfect	V-ing perfect
ought to I have purled? ought to you have purled? ought to she have purled? ought to we have purled? ought to you have purled? ought to they have purled?	ought to I have been purling? ought to you have been purling? ought to she have been purling? ought to we have been purling? ought to you have been purling? ought to they have been purling?

Interro-negative form

Simple form	V-ing form
oughtn't I to purl? oughtn't you to purl? oughtn't she to purl? oughtn't we to purl? oughtn't you to purl? oughtn't they to purl?	oughtn't I to be purling? oughtn't you to be purling? oughtn't she to be purling? oughtn't we to be purling? oughtn't you to be purling? oughtn't they to be purling?
Perfect	V-ing perfect
oughtn't I to have purled? oughtn't you to have purled? oughtn't she to have purled? oughtn't we to have purled? oughtn't you to have purled? oughtn't they to have purled?	oughtn't I to have been purling? oughtn't you to have been purling? oughtn't she to have been purling? oughtn't we to have been purling? oughtn't you to have been purling? oughtn't they to have been purling?