I could snuff you could snuff she could snuff we could snuff you could snuff they could snuff
Forme en V-ing
I could be snuffing you could be snuffing she could be snuffing we could be snuffing you could be snuffing they could be snuffing
Perfect
I could have snuffed you could have snuffed she could have snuffed we could have snuffed you could have snuffed they could have snuffed
Perfect en V-ing
I could have been snuffing you could have been snuffing she could have been snuffing we could have been snuffing you could have been snuffing they could have been snuffing
Négation
Forme simple
I could not snuff you could not snuff she could not snuff we could not snuff you could not snuff they could not snuff
Forme en V-ing
I could not be snuffing you could not be snuffing she could not be snuffing we could not be snuffing you could not be snuffing they could not be snuffing
Perfect
I could not have snuffed you could not have snuffed she could not have snuffed we could not have snuffed you could not have snuffed they could not have snuffed
Perfect en V-ing
I could not have been snuffing you could not have been snuffing she could not have been snuffing we could not have been snuffing you could not have been snuffing they could not have been snuffing
Forme interrogative
Forme simple
could I snuff? could you snuff? could she snuff? could we snuff? could you snuff? could they snuff?
Forme en V-ing
could I be snuffing? could you be snuffing? could she be snuffing? could we be snuffing? could you be snuffing? could they be snuffing?
Perfect
could I have snuffed? could you have snuffed? could she have snuffed? could we have snuffed? could you have snuffed? could they have snuffed?
Perfect en V-ing
could I have been snuffing? could you have been snuffing? could she have been snuffing? could we have been snuffing? could you have been snuffing? could they have been snuffing?
Forme interro-négative
Forme simple
could I not snuff? could you not snuff? could she not snuff? could we not snuff? could you not snuff? could they not snuff?
Forme en V-ing
could I not be snuffing? could you not be snuffing? could she not be snuffing? could we not be snuffing? could you not be snuffing? could they not be snuffing?
Perfect
could I not have snuffed? could you not have snuffed? could she not have snuffed? could we not have snuffed? could you not have snuffed? could they not have snuffed?
Perfect en V-ing
could I not have been snuffing? could you not have been snuffing? could she not have been snuffing? could we not have been snuffing? could you not have been snuffing? could they not have been snuffing?