I could backstop you could backstop she could backstop we could backstop you could backstop they could backstop
Forme en V-ing
I could be backstoping you could be backstoping she could be backstoping we could be backstoping you could be backstoping they could be backstoping
Perfect
I could have backstoped you could have backstoped she could have backstoped we could have backstoped you could have backstoped they could have backstoped
Perfect en V-ing
I could have been backstoping you could have been backstoping she could have been backstoping we could have been backstoping you could have been backstoping they could have been backstoping
Négation
Forme simple
I could not backstop you could not backstop she could not backstop we could not backstop you could not backstop they could not backstop
Forme en V-ing
I could not be backstoping you could not be backstoping she could not be backstoping we could not be backstoping you could not be backstoping they could not be backstoping
Perfect
I could not have backstoped you could not have backstoped she could not have backstoped we could not have backstoped you could not have backstoped they could not have backstoped
Perfect en V-ing
I could not have been backstoping you could not have been backstoping she could not have been backstoping we could not have been backstoping you could not have been backstoping they could not have been backstoping
Forme interrogative
Forme simple
could I backstop? could you backstop? could she backstop? could we backstop? could you backstop? could they backstop?
Forme en V-ing
could I be backstoping? could you be backstoping? could she be backstoping? could we be backstoping? could you be backstoping? could they be backstoping?
Perfect
could I have backstoped? could you have backstoped? could she have backstoped? could we have backstoped? could you have backstoped? could they have backstoped?
Perfect en V-ing
could I have been backstoping? could you have been backstoping? could she have been backstoping? could we have been backstoping? could you have been backstoping? could they have been backstoping?
Forme interro-négative
Forme simple
could I not backstop? could you not backstop? could she not backstop? could we not backstop? could you not backstop? could they not backstop?
Forme en V-ing
could I not be backstoping? could you not be backstoping? could she not be backstoping? could we not be backstoping? could you not be backstoping? could they not be backstoping?
Perfect
could I not have backstoped? could you not have backstoped? could she not have backstoped? could we not have backstoped? could you not have backstoped? could they not have backstoped?
Perfect en V-ing
could I not have been backstoping? could you not have been backstoping? could she not have been backstoping? could we not have been backstoping? could you not have been backstoping? could they not have been backstoping?