I can backstop you can backstop he can backstop we can backstop you can backstop they can backstop
Forme en V-ing
I can be backstoping you can be backstoping he can be backstoping we can be backstoping you can be backstoping they can be backstoping
Perfect
I can have backstoped you can have backstoped he can have backstoped we can have backstoped you can have backstoped they can have backstoped
Perfect en V-ing
I can have been backstoping you can have been backstoping he can have been backstoping we can have been backstoping you can have been backstoping they can have been backstoping
Négation
Forme simple
I can't backstop you can't backstop he can't backstop we can't backstop you can't backstop they can't backstop
Forme en V-ing
I can't be backstoping you can't be backstoping he can't be backstoping we can't be backstoping you can't be backstoping they can't be backstoping
Perfect
I can't have backstoped you can't have backstoped he can't have backstoped we can't have backstoped you can't have backstoped they can't have backstoped
Perfect en V-ing
I can't have been backstoping you can't have been backstoping he can't have been backstoping we can't have been backstoping you can't have been backstoping they can't have been backstoping
Forme interrogative
Forme simple
can I backstop? can you backstop? can he backstop? can we backstop? can you backstop? can they backstop?
Forme en V-ing
can I be backstoping? can you be backstoping? can he be backstoping? can we be backstoping? can you be backstoping? can they be backstoping?
Perfect
can I have backstoped? can you have backstoped? can he have backstoped? can we have backstoped? can you have backstoped? can they have backstoped?
Perfect en V-ing
can I have been backstoping? can you have been backstoping? can he have been backstoping? can we have been backstoping? can you have been backstoping? can they have been backstoping?
Forme interro-négative
Forme simple
can't I backstop? can't you backstop? can't he backstop? can't we backstop? can't you backstop? can't they backstop?
Forme en V-ing
can't I be backstoping? can't you be backstoping? can't he be backstoping? can't we be backstoping? can't you be backstoping? can't they be backstoping?
Perfect
can't I have backstoped? can't you have backstoped? can't he have backstoped? can't we have backstoped? can't you have backstoped? can't they have backstoped?
Perfect en V-ing
can't I have been backstoping? can't you have been backstoping? can't he have been backstoping? can't we have been backstoping? can't you have been backstoping? can't they have been backstoping?