English verb conjugation
SHOULD THREAT

Regular verb: threat - threated - threated

Affirmation

Simple form	V-ing form
I'd threat you'd threat he'd threat we'd threat you'd threat they'd threat	I'd be threating you'd be threating he'd be threating we'd be threating you'd be threating they'd be threating
Perfect	V-ing perfect
I should've threated you should've threated he should've threated we should've threated you should've threated they should've threated	I should've been threating you should've been threating he should've been threating we should've been threating you should've been threating they should've been threating

Negation

Simple form	V-ing form
I shouldn't threat you shouldn't threat he shouldn't threat we shouldn't threat you shouldn't threat they shouldn't threat	I shouldn't be threating you shouldn't be threating he shouldn't be threating we shouldn't be threating you shouldn't be threating they shouldn't be threating
Perfect	V-ing perfect
I shouldn't have threated you shouldn't have threated he shouldn't have threated we shouldn't have threated you shouldn't have threated they shouldn't have threated	I shouldn't have been threating you shouldn't have been threating he shouldn't have been threating we shouldn't have been threating you shouldn't have been threating they shouldn't have been threating

Interrogative form

Simple form	V-ing form
should I threat? should you threat? should he threat? should we threat? should you threat? should they threat?	should I be threating? should you be threating? should he be threating? should we be threating? should you be threating? should they be threating?
Perfect	V-ing perfect
should I have threated? should you have threated? should he have threated? should we have threated? should you have threated? should they have threated?	should I have been threating? should you have been threating? should he have been threating? should we have been threating? should you have been threating? should they have been threating?

Interro-negative form

Simple form	V-ing form
shouldn't I threat? shouldn't you threat? shouldn't he threat? shouldn't we threat? shouldn't you threat? shouldn't they threat?	shouldn't I be threating? shouldn't you be threating? shouldn't he be threating? shouldn't we be threating? shouldn't you be threating? shouldn't they be threating?
Perfect	V-ing perfect
shouldn't I have threated? shouldn't you have threated? shouldn't he have threated? shouldn't we have threated? shouldn't you have threated? shouldn't they have threated?	shouldn't I have been threating? shouldn't you have been threating? shouldn't he have been threating? shouldn't we have been threating? shouldn't you have been threating? shouldn't they have been threating?