English verb conjugation
COULD COFFER

Regular verb: coffer - coffered - coffered

Affirmation

Simple form	V-ing form
I could coffer you could coffer she could coffer we could coffer you could coffer they could coffer	I could be coffering you could be coffering she could be coffering we could be coffering you could be coffering they could be coffering
Perfect	V-ing perfect
I could have coffered you could have coffered she could have coffered we could have coffered you could have coffered they could have coffered	I could have been coffering you could have been coffering she could have been coffering we could have been coffering you could have been coffering they could have been coffering

Negation

Simple form	V-ing form
I could not coffer you could not coffer she could not coffer we could not coffer you could not coffer they could not coffer	I could not be coffering you could not be coffering she could not be coffering we could not be coffering you could not be coffering they could not be coffering
Perfect	V-ing perfect
I could not have coffered you could not have coffered she could not have coffered we could not have coffered you could not have coffered they could not have coffered	I could not have been coffering you could not have been coffering she could not have been coffering we could not have been coffering you could not have been coffering they could not have been coffering

Interrogative form

Simple form	V-ing form
could I coffer? could you coffer? could she coffer? could we coffer? could you coffer? could they coffer?	could I be coffering? could you be coffering? could she be coffering? could we be coffering? could you be coffering? could they be coffering?
Perfect	V-ing perfect
could I have coffered? could you have coffered? could she have coffered? could we have coffered? could you have coffered? could they have coffered?	could I have been coffering? could you have been coffering? could she have been coffering? could we have been coffering? could you have been coffering? could they have been coffering?

Interro-negative form

Simple form	V-ing form
could I not coffer? could you not coffer? could she not coffer? could we not coffer? could you not coffer? could they not coffer?	could I not be coffering? could you not be coffering? could she not be coffering? could we not be coffering? could you not be coffering? could they not be coffering?
Perfect	V-ing perfect
could I not have coffered? could you not have coffered? could she not have coffered? could we not have coffered? could you not have coffered? could they not have coffered?	could I not have been coffering? could you not have been coffering? could she not have been coffering? could we not have been coffering? could you not have been coffering? could they not have been coffering?