I should backstop you should backstop he should backstop we should backstop you should backstop they should backstop
V-ing form
I should be backstoping you should be backstoping he should be backstoping we should be backstoping you should be backstoping they should be backstoping
Perfect
I should have backstoped you should have backstoped he should have backstoped we should have backstoped you should have backstoped they should have backstoped
V-ing perfect
I should have been backstoping you should have been backstoping he should have been backstoping we should have been backstoping you should have been backstoping they should have been backstoping
Negation
Simple form
I should not backstop you should not backstop he should not backstop we should not backstop you should not backstop they should not backstop
V-ing form
I should not be backstoping you should not be backstoping he should not be backstoping we should not be backstoping you should not be backstoping they should not be backstoping
Perfect
I should not have backstoped you should not have backstoped he should not have backstoped we should not have backstoped you should not have backstoped they should not have backstoped
V-ing perfect
I should not have been backstoping you should not have been backstoping he should not have been backstoping we should not have been backstoping you should not have been backstoping they should not 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
should I not backstop? should you not backstop? should he not backstop? should we not backstop? should you not backstop? should they not backstop?
V-ing form
should I not be backstoping? should you not be backstoping? should he not be backstoping? should we not be backstoping? should you not be backstoping? should they not be backstoping?
Perfect
should I not have backstoped? should you not have backstoped? should he not have backstoped? should we not have backstoped? should you not have backstoped? should they not have backstoped?
V-ing perfect
should I not have been backstoping? should you not have been backstoping? should he not have been backstoping? should we not have been backstoping? should you not have been backstoping? should they not have been backstoping?