I can buffer you can buffer she can buffer we can buffer you can buffer they can buffer
Forma con V-ing
I can be buffering you can be buffering she can be buffering we can be buffering you can be buffering they can be buffering
Perfecto
I can have buffered you can have buffered she can have buffered we can have buffered you can have buffered they can have buffered
Perfecto con V-ing
I can have been buffering you can have been buffering she can have been buffering we can have been buffering you can have been buffering they can have been buffering
Negación
Forma simple
I can't buffer you can't buffer she can't buffer we can't buffer you can't buffer they can't buffer
Forma con V-ing
I can't be buffering you can't be buffering she can't be buffering we can't be buffering you can't be buffering they can't be buffering
Perfecto
I can't have buffered you can't have buffered she can't have buffered we can't have buffered you can't have buffered they can't have buffered
Perfecto con V-ing
I can't have been buffering you can't have been buffering she 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 she buffer? can we buffer? can you buffer? can they buffer?
Forma con V-ing
can I be buffering? can you be buffering? can she be buffering? can we be buffering? can you be buffering? can they be buffering?
Perfecto
can I have buffered? can you have buffered? can she have buffered? can we have buffered? can you have buffered? can they have buffered?
Perfecto con V-ing
can I have been buffering? can you have been buffering? can she have been buffering? can we have been buffering? can you have been buffering? can they have been buffering?
Forma interro-negativa
Forma simple
can't I buffer? can't you buffer? can't she buffer? can't we buffer? can't you buffer? can't they buffer?
Forma con V-ing
can't I be buffering? can't you be buffering? can't she be buffering? can't we be buffering? can't you be buffering? can't they be buffering?
Perfecto
can't I have buffered? can't you have buffered? can't she have buffered? can't we have buffered? can't you have buffered? can't they have buffered?
Perfecto con V-ing
can't I have been buffering? can't you have been buffering? can't she have been buffering? can't we have been buffering? can't you have been buffering? can't they have been buffering?