I can snuff you can snuff he can snuff we can snuff you can snuff they can snuff
Forma con V-ing
I can be snuffing you can be snuffing he can be snuffing we can be snuffing you can be snuffing they can be snuffing
Perfecto
I can have snuffed you can have snuffed he can have snuffed we can have snuffed you can have snuffed they can have snuffed
Perfecto con V-ing
I can have been snuffing you can have been snuffing he can have been snuffing we can have been snuffing you can have been snuffing they can have been snuffing
Negación
Forma simple
I can't snuff you can't snuff he can't snuff we can't snuff you can't snuff they can't snuff
Forma con V-ing
I can't be snuffing you can't be snuffing he can't be snuffing we can't be snuffing you can't be snuffing they can't be snuffing
Perfecto
I can't have snuffed you can't have snuffed he can't have snuffed we can't have snuffed you can't have snuffed they can't have snuffed
Perfecto con V-ing
I can't have been snuffing you can't have been snuffing he can't have been snuffing we can't have been snuffing you can't have been snuffing they can't have been snuffing
Forma interrogativa
Forma simple
can I snuff? can you snuff? can he snuff? can we snuff? can you snuff? can they snuff?
Forma con V-ing
can I be snuffing? can you be snuffing? can he be snuffing? can we be snuffing? can you be snuffing? can they be snuffing?
Perfecto
can I have snuffed? can you have snuffed? can he have snuffed? can we have snuffed? can you have snuffed? can they have snuffed?
Perfecto con V-ing
can I have been snuffing? can you have been snuffing? can he have been snuffing? can we have been snuffing? can you have been snuffing? can they have been snuffing?
Forma interro-negativa
Forma simple
can't I snuff? can't you snuff? can't he snuff? can't we snuff? can't you snuff? can't they snuff?
Forma con V-ing
can't I be snuffing? can't you be snuffing? can't he be snuffing? can't we be snuffing? can't you be snuffing? can't they be snuffing?
Perfecto
can't I have snuffed? can't you have snuffed? can't he have snuffed? can't we have snuffed? can't you have snuffed? can't they have snuffed?
Perfecto con V-ing
can't I have been snuffing? can't you have been snuffing? can't he have been snuffing? can't we have been snuffing? can't you have been snuffing? can't they have been snuffing?