I can background you can background he can background we can background you can background they can background
Forme en V-ing
I can be backgrounding you can be backgrounding he can be backgrounding we can be backgrounding you can be backgrounding they can be backgrounding
Perfect
I can have backgrounded you can have backgrounded he can have backgrounded we can have backgrounded you can have backgrounded they can have backgrounded
Perfect en V-ing
I can have been backgrounding you can have been backgrounding he can have been backgrounding we can have been backgrounding you can have been backgrounding they can have been backgrounding
Négation
Forme simple
I can't background you can't background he can't background we can't background you can't background they can't background
Forme en V-ing
I can't be backgrounding you can't be backgrounding he can't be backgrounding we can't be backgrounding you can't be backgrounding they can't be backgrounding
Perfect
I can't have backgrounded you can't have backgrounded he can't have backgrounded we can't have backgrounded you can't have backgrounded they can't have backgrounded
Perfect en V-ing
I can't have been backgrounding you can't have been backgrounding he can't have been backgrounding we can't have been backgrounding you can't have been backgrounding they can't have been backgrounding
Forme interrogative
Forme simple
can I background? can you background? can he background? can we background? can you background? can they background?
Forme en V-ing
can I be backgrounding? can you be backgrounding? can he be backgrounding? can we be backgrounding? can you be backgrounding? can they be backgrounding?
Perfect
can I have backgrounded? can you have backgrounded? can he have backgrounded? can we have backgrounded? can you have backgrounded? can they have backgrounded?
Perfect en V-ing
can I have been backgrounding? can you have been backgrounding? can he have been backgrounding? can we have been backgrounding? can you have been backgrounding? can they have been backgrounding?
Forme interro-négative
Forme simple
can't I background? can't you background? can't he background? can't we background? can't you background? can't they background?
Forme en V-ing
can't I be backgrounding? can't you be backgrounding? can't he be backgrounding? can't we be backgrounding? can't you be backgrounding? can't they be backgrounding?
Perfect
can't I have backgrounded? can't you have backgrounded? can't he have backgrounded? can't we have backgrounded? can't you have backgrounded? can't they have backgrounded?
Perfect en V-ing
can't I have been backgrounding? can't you have been backgrounding? can't he have been backgrounding? can't we have been backgrounding? can't you have been backgrounding? can't they have been backgrounding?