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 he 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 he 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 he 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 he 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 he 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 he 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 he 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 he 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 he 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 he 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 he 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 he 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 he 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 he 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 he 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 he 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?