English verb conjugation
SHOULD UNDERINSURE

Regular verb: underinsure - underinsured - underinsured

Affirmation

Simple form	V-ing form
I'd underinsure you'd underinsure he'd underinsure we'd underinsure you'd underinsure they'd underinsure	I'd be underinsuring you'd be underinsuring he'd be underinsuring we'd be underinsuring you'd be underinsuring they'd be underinsuring
Perfect	V-ing perfect
I should've underinsured you should've underinsured he should've underinsured we should've underinsured you should've underinsured they should've underinsured	I should've been underinsuring you should've been underinsuring he should've been underinsuring we should've been underinsuring you should've been underinsuring they should've been underinsuring

Negation

Simple form	V-ing form
I shouldn't underinsure you shouldn't underinsure he shouldn't underinsure we shouldn't underinsure you shouldn't underinsure they shouldn't underinsure	I shouldn't be underinsuring you shouldn't be underinsuring he shouldn't be underinsuring we shouldn't be underinsuring you shouldn't be underinsuring they shouldn't be underinsuring
Perfect	V-ing perfect
I shouldn't have underinsured you shouldn't have underinsured he shouldn't have underinsured we shouldn't have underinsured you shouldn't have underinsured they shouldn't have underinsured	I shouldn't have been underinsuring you shouldn't have been underinsuring he shouldn't have been underinsuring we shouldn't have been underinsuring you shouldn't have been underinsuring they shouldn't have been underinsuring

Interrogative form

Simple form	V-ing form
should I underinsure? should you underinsure? should he underinsure? should we underinsure? should you underinsure? should they underinsure?	should I be underinsuring? should you be underinsuring? should he be underinsuring? should we be underinsuring? should you be underinsuring? should they be underinsuring?
Perfect	V-ing perfect
should I have underinsured? should you have underinsured? should he have underinsured? should we have underinsured? should you have underinsured? should they have underinsured?	should I have been underinsuring? should you have been underinsuring? should he have been underinsuring? should we have been underinsuring? should you have been underinsuring? should they have been underinsuring?

Interro-negative form

Simple form	V-ing form
shouldn't I underinsure? shouldn't you underinsure? shouldn't he underinsure? shouldn't we underinsure? shouldn't you underinsure? shouldn't they underinsure?	shouldn't I be underinsuring? shouldn't you be underinsuring? shouldn't he be underinsuring? shouldn't we be underinsuring? shouldn't you be underinsuring? shouldn't they be underinsuring?
Perfect	V-ing perfect
shouldn't I have underinsured? shouldn't you have underinsured? shouldn't he have underinsured? shouldn't we have underinsured? shouldn't you have underinsured? shouldn't they have underinsured?	shouldn't I have been underinsuring? shouldn't you have been underinsuring? shouldn't he have been underinsuring? shouldn't we have been underinsuring? shouldn't you have been underinsuring? shouldn't they have been underinsuring?