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 couldn't snuff you couldn't snuff she couldn't snuff we couldn't snuff you couldn't snuff they couldn't snuff
Forme en V-ing
I couldn't be snuffing you couldn't be snuffing she couldn't be snuffing we couldn't be snuffing you couldn't be snuffing they couldn't be snuffing
Perfect
I couldn't have snuffed you couldn't have snuffed she couldn't have snuffed we couldn't have snuffed you couldn't have snuffed they couldn't have snuffed
Perfect en V-ing
I couldn't have been snuffing you couldn't have been snuffing she couldn't have been snuffing we couldn't have been snuffing you couldn't have been snuffing they couldn't 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
couldn't I snuff? couldn't you snuff? couldn't she snuff? couldn't we snuff? couldn't you snuff? couldn't they snuff?
Forme en V-ing
couldn't I be snuffing? couldn't you be snuffing? couldn't she be snuffing? couldn't we be snuffing? couldn't you be snuffing? couldn't they be snuffing?
Perfect
couldn't I have snuffed? couldn't you have snuffed? couldn't she have snuffed? couldn't we have snuffed? couldn't you have snuffed? couldn't they have snuffed?
Perfect en V-ing
couldn't I have been snuffing? couldn't you have been snuffing? couldn't she have been snuffing? couldn't we have been snuffing? couldn't you have been snuffing? couldn't they have been snuffing?