English verb conjugation
SHOULD CAUTION

Regular verb: caution - cautioned - cautioned

Affirmation

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

Negation

Simple form	V-ing form
I should not caution you should not caution she should not caution we should not caution you should not caution they should not caution	I should not be cautioning you should not be cautioning she should not be cautioning we should not be cautioning you should not be cautioning they should not be cautioning
Perfect	V-ing perfect
I should not have cautioned you should not have cautioned she should not have cautioned we should not have cautioned you should not have cautioned they should not have cautioned	I should not have been cautioning you should not have been cautioning she should not have been cautioning we should not have been cautioning you should not have been cautioning they should not have been cautioning

Interrogative form

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

Interro-negative form

Simple form	V-ing form
should I not caution? should you not caution? should she not caution? should we not caution? should you not caution? should they not caution?	should I not be cautioning? should you not be cautioning? should she not be cautioning? should we not be cautioning? should you not be cautioning? should they not be cautioning?
Perfect	V-ing perfect
should I not have cautioned? should you not have cautioned? should she not have cautioned? should we not have cautioned? should you not have cautioned? should they not have cautioned?	should I not have been cautioning? should you not have been cautioning? should she not have been cautioning? should we not have been cautioning? should you not have been cautioning? should they not have been cautioning?