I'd be backstoping you'd be backstoping he'd be backstoping we'd be backstoping you'd be backstoping they'd be backstoping
Perfect
I should've backstoped you should've backstoped he should've backstoped we should've backstoped you should've backstoped they should've backstoped
V-ing perfect
I should've been backstoping you should've been backstoping he should've been backstoping we should've been backstoping you should've been backstoping they should've been backstoping
Negation
Simple form
I shouldn't backstop you shouldn't backstop he shouldn't backstop we shouldn't backstop you shouldn't backstop they shouldn't backstop
V-ing form
I shouldn't be backstoping you shouldn't be backstoping he shouldn't be backstoping we shouldn't be backstoping you shouldn't be backstoping they shouldn't be backstoping
Perfect
I shouldn't have backstoped you shouldn't have backstoped he shouldn't have backstoped we shouldn't have backstoped you shouldn't have backstoped they shouldn't have backstoped
V-ing perfect
I shouldn't have been backstoping you shouldn't have been backstoping he shouldn't have been backstoping we shouldn't have been backstoping you shouldn't have been backstoping they shouldn't have been backstoping
Interrogative form
Simple form
should I backstop? should you backstop? should he backstop? should we backstop? should you backstop? should they backstop?
V-ing form
should I be backstoping? should you be backstoping? should he be backstoping? should we be backstoping? should you be backstoping? should they be backstoping?
Perfect
should I have backstoped? should you have backstoped? should he have backstoped? should we have backstoped? should you have backstoped? should they have backstoped?
V-ing perfect
should I have been backstoping? should you have been backstoping? should he have been backstoping? should we have been backstoping? should you have been backstoping? should they have been backstoping?
Interro-negative form
Simple form
shouldn't I backstop? shouldn't you backstop? shouldn't he backstop? shouldn't we backstop? shouldn't you backstop? shouldn't they backstop?
V-ing form
shouldn't I be backstoping? shouldn't you be backstoping? shouldn't he be backstoping? shouldn't we be backstoping? shouldn't you be backstoping? shouldn't they be backstoping?
Perfect
shouldn't I have backstoped? shouldn't you have backstoped? shouldn't he have backstoped? shouldn't we have backstoped? shouldn't you have backstoped? shouldn't they have backstoped?
V-ing perfect
shouldn't I have been backstoping? shouldn't you have been backstoping? shouldn't he have been backstoping? shouldn't we have been backstoping? shouldn't you have been backstoping? shouldn't they have been backstoping?