English verb conjugation
COULD BUFFER

Regular verb: buffer - buffered - buffered

Affirmation

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

Negation

Simple form	V-ing form
I could not buffer you could not buffer she could not buffer we could not buffer you could not buffer they could not buffer	I could not be buffering you could not be buffering she could not be buffering we could not be buffering you could not be buffering they could not be buffering
Perfect	V-ing perfect
I could not have buffered you could not have buffered she could not have buffered we could not have buffered you could not have buffered they could not have buffered	I could not have been buffering you could not have been buffering she could not have been buffering we could not have been buffering you could not have been buffering they could not have been buffering

Interrogative form

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

Interro-negative form

Simple form	V-ing form
could I not buffer? could you not buffer? could she not buffer? could we not buffer? could you not buffer? could they not buffer?	could I not be buffering? could you not be buffering? could she not be buffering? could we not be buffering? could you not be buffering? could they not be buffering?
Perfect	V-ing perfect
could I not have buffered? could you not have buffered? could she not have buffered? could we not have buffered? could you not have buffered? could they not have buffered?	could I not have been buffering? could you not have been buffering? could she not have been buffering? could we not have been buffering? could you not have been buffering? could they not have been buffering?