English verb conjugation
MUST GOFFER

Regular verb: goffer - goffered - goffered

Affirmation

Simple form	V-ing form
I must goffer you must goffer he must goffer we must goffer you must goffer they must goffer	I must be goffering you must be goffering he must be goffering we must be goffering you must be goffering they must be goffering
Perfect	V-ing perfect
I must have goffered you must have goffered he must have goffered we must have goffered you must have goffered they must have goffered	I must have been goffering you must have been goffering he must have been goffering we must have been goffering you must have been goffering they must have been goffering

Negation

Simple form	V-ing form
I mustn't goffer you mustn't goffer he mustn't goffer we mustn't goffer you mustn't goffer they mustn't goffer	I mustn't be goffering you mustn't be goffering he mustn't be goffering we mustn't be goffering you mustn't be goffering they mustn't be goffering
Perfect	V-ing perfect
I mustn't have goffered you mustn't have goffered he mustn't have goffered we mustn't have goffered you mustn't have goffered they mustn't have goffered	I mustn't have been goffering you mustn't have been goffering he mustn't have been goffering we mustn't have been goffering you mustn't have been goffering they mustn't have been goffering

Interrogative form

Simple form	V-ing form
must I goffer? must you goffer? must he goffer? must we goffer? must you goffer? must they goffer?	must I be goffering? must you be goffering? must he be goffering? must we be goffering? must you be goffering? must they be goffering?
Perfect	V-ing perfect
must I have goffered? must you have goffered? must he have goffered? must we have goffered? must you have goffered? must they have goffered?	must I have been goffering? must you have been goffering? must he have been goffering? must we have been goffering? must you have been goffering? must they have been goffering?

Interro-negative form

Simple form	V-ing form
mustn't I goffer? mustn't you goffer? mustn't he goffer? mustn't we goffer? mustn't you goffer? mustn't they goffer?	mustn't I be goffering? mustn't you be goffering? mustn't he be goffering? mustn't we be goffering? mustn't you be goffering? mustn't they be goffering?
Perfect	V-ing perfect
mustn't I have goffered? mustn't you have goffered? mustn't he have goffered? mustn't we have goffered? mustn't you have goffered? mustn't they have goffered?	mustn't I have been goffering? mustn't you have been goffering? mustn't he have been goffering? mustn't we have been goffering? mustn't you have been goffering? mustn't they have been goffering?