English verb conjugation
OUGHT TO CAUTION

Regular verb: caution - cautioned - cautioned

Affirmation

Simple form	V-ing form
I ought to caution you ought to caution she ought to caution we ought to caution you ought to caution they ought to caution	I ought to be cautioning you ought to be cautioning she ought to be cautioning we ought to be cautioning you ought to be cautioning they ought to be cautioning
Perfect	V-ing perfect
I ought to have cautioned you ought to have cautioned she ought to have cautioned we ought to have cautioned you ought to have cautioned they ought to have cautioned	I ought to have been cautioning you ought to have been cautioning she ought to have been cautioning we ought to have been cautioning you ought to have been cautioning they ought to have been cautioning

Negation

Simple form	V-ing form
I oughtn't to caution you oughtn't to caution she oughtn't to caution we oughtn't to caution you oughtn't to caution they oughtn't to caution	I oughtn't to be cautioning you oughtn't to be cautioning she oughtn't to be cautioning we oughtn't to be cautioning you oughtn't to be cautioning they oughtn't to be cautioning
Perfect	V-ing perfect
I oughtn't to have cautioned you oughtn't to have cautioned she oughtn't to have cautioned we oughtn't to have cautioned you oughtn't to have cautioned they oughtn't to have cautioned	I oughtn't to have been cautioning you oughtn't to have been cautioning she oughtn't to have been cautioning we oughtn't to have been cautioning you oughtn't to have been cautioning they oughtn't to have been cautioning

Interrogative form

Simple form	V-ing form
ought to I caution? ought to you caution? ought to she caution? ought to we caution? ought to you caution? ought to they caution?	ought to I be cautioning? ought to you be cautioning? ought to she be cautioning? ought to we be cautioning? ought to you be cautioning? ought to they be cautioning?
Perfect	V-ing perfect
ought to I have cautioned? ought to you have cautioned? ought to she have cautioned? ought to we have cautioned? ought to you have cautioned? ought to they have cautioned?	ought to I have been cautioning? ought to you have been cautioning? ought to she have been cautioning? ought to we have been cautioning? ought to you have been cautioning? ought to they have been cautioning?

Interro-negative form

Simple form	V-ing form
oughtn't I to caution? oughtn't you to caution? oughtn't she to caution? oughtn't we to caution? oughtn't you to caution? oughtn't they to caution?	oughtn't I to be cautioning? oughtn't you to be cautioning? oughtn't she to be cautioning? oughtn't we to be cautioning? oughtn't you to be cautioning? oughtn't they to be cautioning?
Perfect	V-ing perfect
oughtn't I to have cautioned? oughtn't you to have cautioned? oughtn't she to have cautioned? oughtn't we to have cautioned? oughtn't you to have cautioned? oughtn't they to have cautioned?	oughtn't I to have been cautioning? oughtn't you to have been cautioning? oughtn't she to have been cautioning? oughtn't we to have been cautioning? oughtn't you to have been cautioning? oughtn't they to have been cautioning?