English verb conjugation
CAN BUFFER

Regular verb: buffer - buffered - buffered

Affirmation

Simple form	V-ing form
I can buffer you can buffer she can buffer we can buffer you can buffer they can buffer	I can be buffering you can be buffering she can be buffering we can be buffering you can be buffering they can be buffering
Perfect	V-ing perfect
I can have buffered you can have buffered she can have buffered we can have buffered you can have buffered they can have buffered	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

Negation

Simple form	V-ing form
I can't buffer you can't buffer she can't buffer we can't buffer you can't buffer they can't buffer	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
Perfect	V-ing perfect
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	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

Interrogative form

Simple form	V-ing form
can I buffer? can you buffer? can she buffer? can we buffer? can you buffer? can they buffer?	can I be buffering? can you be buffering? can she be buffering? can we be buffering? can you be buffering? can they be buffering?
Perfect	V-ing perfect
can I have buffered? can you have buffered? can she have buffered? can we have buffered? can you have buffered? can they have buffered?	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?

Interro-negative form

Simple form	V-ing form
can't I buffer? can't you buffer? can't she buffer? can't we buffer? can't you buffer? can't they buffer?	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?
Perfect	V-ing perfect
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?	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?