I can snuff you can snuff he can snuff we can snuff you can snuff they can snuff
Forma com 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
Perfeito
I can have snuffed you can have snuffed he can have snuffed we can have snuffed you can have snuffed they can have snuffed
Perfeito com 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
Negação
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 com 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
Perfeito
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
Perfeito com 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 com 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?
Perfeito
can I have snuffed? can you have snuffed? can he have snuffed? can we have snuffed? can you have snuffed? can they have snuffed?
Perfeito com 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-Negação
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 com 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?
Perfeito
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?
Perfeito com 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?