English verb conjugation
OUGHT TO YAK

Regular verb: yak - yaked - yaked

Affirmation

Simple form	V-ing form
I ought to yak you ought to yak she ought to yak we ought to yak you ought to yak they ought to yak	I ought to be yaking you ought to be yaking she ought to be yaking we ought to be yaking you ought to be yaking they ought to be yaking
Perfect	V-ing perfect
I ought to have yaked you ought to have yaked she ought to have yaked we ought to have yaked you ought to have yaked they ought to have yaked	I ought to have been yaking you ought to have been yaking she ought to have been yaking we ought to have been yaking you ought to have been yaking they ought to have been yaking

Negation

Simple form	V-ing form
I oughtn't to yak you oughtn't to yak she oughtn't to yak we oughtn't to yak you oughtn't to yak they oughtn't to yak	I oughtn't to be yaking you oughtn't to be yaking she oughtn't to be yaking we oughtn't to be yaking you oughtn't to be yaking they oughtn't to be yaking
Perfect	V-ing perfect
I oughtn't to have yaked you oughtn't to have yaked she oughtn't to have yaked we oughtn't to have yaked you oughtn't to have yaked they oughtn't to have yaked	I oughtn't to have been yaking you oughtn't to have been yaking she oughtn't to have been yaking we oughtn't to have been yaking you oughtn't to have been yaking they oughtn't to have been yaking

Interrogative form

Simple form	V-ing form
ought to I yak? ought to you yak? ought to she yak? ought to we yak? ought to you yak? ought to they yak?	ought to I be yaking? ought to you be yaking? ought to she be yaking? ought to we be yaking? ought to you be yaking? ought to they be yaking?
Perfect	V-ing perfect
ought to I have yaked? ought to you have yaked? ought to she have yaked? ought to we have yaked? ought to you have yaked? ought to they have yaked?	ought to I have been yaking? ought to you have been yaking? ought to she have been yaking? ought to we have been yaking? ought to you have been yaking? ought to they have been yaking?

Interro-negative form

Simple form	V-ing form
oughtn't I to yak? oughtn't you to yak? oughtn't she to yak? oughtn't we to yak? oughtn't you to yak? oughtn't they to yak?	oughtn't I to be yaking? oughtn't you to be yaking? oughtn't she to be yaking? oughtn't we to be yaking? oughtn't you to be yaking? oughtn't they to be yaking?
Perfect	V-ing perfect
oughtn't I to have yaked? oughtn't you to have yaked? oughtn't she to have yaked? oughtn't we to have yaked? oughtn't you to have yaked? oughtn't they to have yaked?	oughtn't I to have been yaking? oughtn't you to have been yaking? oughtn't she to have been yaking? oughtn't we to have been yaking? oughtn't you to have been yaking? oughtn't they to have been yaking?