I may coffer you may coffer he may coffer we may coffer you may coffer they may coffer
V-ing form
I may be coffering you may be coffering he may be coffering we may be coffering you may be coffering they may be coffering
Perfect
I may have coffered you may have coffered he may have coffered we may have coffered you may have coffered they may have coffered
V-ing perfect
I may have been coffering you may have been coffering he may have been coffering we may have been coffering you may have been coffering they may have been coffering
Negation
Simple form
I may not coffer you may not coffer he may not coffer we may not coffer you may not coffer they may not coffer
V-ing form
I may not be coffering you may not be coffering he may not be coffering we may not be coffering you may not be coffering they may not be coffering
Perfect
I may not have coffered you may not have coffered he may not have coffered we may not have coffered you may not have coffered they may not have coffered
V-ing perfect
I may not have been coffering you may not have been coffering he may not have been coffering we may not have been coffering you may not have been coffering they may not have been coffering
Interrogative form
Simple form
may I coffer? may you coffer? may he coffer? may we coffer? may you coffer? may they coffer?
V-ing form
may I be coffering? may you be coffering? may he be coffering? may we be coffering? may you be coffering? may they be coffering?
Perfect
may I have coffered? may you have coffered? may he have coffered? may we have coffered? may you have coffered? may they have coffered?
V-ing perfect
may I have been coffering? may you have been coffering? may he have been coffering? may we have been coffering? may you have been coffering? may they have been coffering?
Interro-negative form
Simple form
may I not coffer? may you not coffer? may he not coffer? may we not coffer? may you not coffer? may they not coffer?
V-ing form
may I not be coffering? may you not be coffering? may he not be coffering? may we not be coffering? may you not be coffering? may they not be coffering?
Perfect
may I not have coffered? may you not have coffered? may he not have coffered? may we not have coffered? may you not have coffered? may they not have coffered?
V-ing perfect
may I not have been coffering? may you not have been coffering? may he not have been coffering? may we not have been coffering? may you not have been coffering? may they not have been coffering?