English verb conjugation
MUST OFF

Regular verb: off - offed - offed

Affirmation

Simple form	V-ing form
I must off you must off he must off we must off you must off they must off	I must be offing you must be offing he must be offing we must be offing you must be offing they must be offing
Perfect	V-ing perfect
I must have offed you must have offed he must have offed we must have offed you must have offed they must have offed	I must have been offing you must have been offing he must have been offing we must have been offing you must have been offing they must have been offing

Negation

Simple form	V-ing form
I mustn't off you mustn't off he mustn't off we mustn't off you mustn't off they mustn't off	I mustn't be offing you mustn't be offing he mustn't be offing we mustn't be offing you mustn't be offing they mustn't be offing
Perfect	V-ing perfect
I mustn't have offed you mustn't have offed he mustn't have offed we mustn't have offed you mustn't have offed they mustn't have offed	I mustn't have been offing you mustn't have been offing he mustn't have been offing we mustn't have been offing you mustn't have been offing they mustn't have been offing

Interrogative form

Simple form	V-ing form
must I off? must you off? must he off? must we off? must you off? must they off?	must I be offing? must you be offing? must he be offing? must we be offing? must you be offing? must they be offing?
Perfect	V-ing perfect
must I have offed? must you have offed? must he have offed? must we have offed? must you have offed? must they have offed?	must I have been offing? must you have been offing? must he have been offing? must we have been offing? must you have been offing? must they have been offing?

Interro-negative form

Simple form	V-ing form
mustn't I off? mustn't you off? mustn't he off? mustn't we off? mustn't you off? mustn't they off?	mustn't I be offing? mustn't you be offing? mustn't he be offing? mustn't we be offing? mustn't you be offing? mustn't they be offing?
Perfect	V-ing perfect
mustn't I have offed? mustn't you have offed? mustn't he have offed? mustn't we have offed? mustn't you have offed? mustn't they have offed?	mustn't I have been offing? mustn't you have been offing? mustn't he have been offing? mustn't we have been offing? mustn't you have been offing? mustn't they have been offing?