English verb conjugation
COULD COFFER

Regular verb: coffer - coffered - coffered

Affirmation

Simple form	V-ing form
I could coffer you could coffer he could coffer we could coffer you could coffer they could coffer	I could be coffering you could be coffering he 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 he 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 he 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 couldn't coffer you couldn't coffer he couldn't coffer we couldn't coffer you couldn't coffer they couldn't coffer	I couldn't be coffering you couldn't be coffering he couldn't be coffering we couldn't be coffering you couldn't be coffering they couldn't be coffering
Perfect	V-ing perfect
I couldn't have coffered you couldn't have coffered he couldn't have coffered we couldn't have coffered you couldn't have coffered they couldn't have coffered	I couldn't have been coffering you couldn't have been coffering he couldn't have been coffering we couldn't have been coffering you couldn't have been coffering they couldn't have been coffering

Interrogative form

Simple form	V-ing form
could I coffer? could you coffer? could he coffer? could we coffer? could you coffer? could they coffer?	could I be coffering? could you be coffering? could he 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 he 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 he 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
couldn't I coffer? couldn't you coffer? couldn't he coffer? couldn't we coffer? couldn't you coffer? couldn't they coffer?	couldn't I be coffering? couldn't you be coffering? couldn't he be coffering? couldn't we be coffering? couldn't you be coffering? couldn't they be coffering?
Perfect	V-ing perfect
couldn't I have coffered? couldn't you have coffered? couldn't he have coffered? couldn't we have coffered? couldn't you have coffered? couldn't they have coffered?	couldn't I have been coffering? couldn't you have been coffering? couldn't he have been coffering? couldn't we have been coffering? couldn't you have been coffering? couldn't they have been coffering?