I can buffer you can buffer he can buffer we can buffer you can buffer they can buffer
Forma com V-ing
I can be buffering you can be buffering he can be buffering we can be buffering you can be buffering they can be buffering
Perfeito
I can have buffered you can have buffered he can have buffered we can have buffered you can have buffered they can have buffered
Perfeito com V-ing
I can have been buffering you can have been buffering he can have been buffering we can have been buffering you can have been buffering they can have been buffering
Negação
Forma simple
I can't buffer you can't buffer he can't buffer we can't buffer you can't buffer they can't buffer
Forma com V-ing
I can't be buffering you can't be buffering he can't be buffering we can't be buffering you can't be buffering they can't be buffering
Perfeito
I can't have buffered you can't have buffered he can't have buffered we can't have buffered you can't have buffered they can't have buffered
Perfeito com V-ing
I can't have been buffering you can't have been buffering he can't have been buffering we can't have been buffering you can't have been buffering they can't have been buffering
Forma interrogativa
Forma simple
can I buffer? can you buffer? can he buffer? can we buffer? can you buffer? can they buffer?
Forma com V-ing
can I be buffering? can you be buffering? can he be buffering? can we be buffering? can you be buffering? can they be buffering?
Perfeito
can I have buffered? can you have buffered? can he have buffered? can we have buffered? can you have buffered? can they have buffered?
Perfeito com V-ing
can I have been buffering? can you have been buffering? can he have been buffering? can we have been buffering? can you have been buffering? can they have been buffering?
Forma interro-Negação
Forma simple
can't I buffer? can't you buffer? can't he buffer? can't we buffer? can't you buffer? can't they buffer?
Forma com V-ing
can't I be buffering? can't you be buffering? can't he be buffering? can't we be buffering? can't you be buffering? can't they be buffering?
Perfeito
can't I have buffered? can't you have buffered? can't he have buffered? can't we have buffered? can't you have buffered? can't they have buffered?
Perfeito com V-ing
can't I have been buffering? can't you have been buffering? can't he have been buffering? can't we have been buffering? can't you have been buffering? can't they have been buffering?