I must overexpand you must overexpand he must overexpand we must overexpand you must overexpand they must overexpand
V-ing form
I must be overexpanding you must be overexpanding he must be overexpanding we must be overexpanding you must be overexpanding they must be overexpanding
Perfect
I must have overexpanded you must have overexpanded he must have overexpanded we must have overexpanded you must have overexpanded they must have overexpanded
V-ing perfect
I must have been overexpanding you must have been overexpanding he must have been overexpanding we must have been overexpanding you must have been overexpanding they must have been overexpanding
Negation
Simple form
I mustn't overexpand you mustn't overexpand he mustn't overexpand we mustn't overexpand you mustn't overexpand they mustn't overexpand
V-ing form
I mustn't be overexpanding you mustn't be overexpanding he mustn't be overexpanding we mustn't be overexpanding you mustn't be overexpanding they mustn't be overexpanding
Perfect
I mustn't have overexpanded you mustn't have overexpanded he mustn't have overexpanded we mustn't have overexpanded you mustn't have overexpanded they mustn't have overexpanded
V-ing perfect
I mustn't have been overexpanding you mustn't have been overexpanding he mustn't have been overexpanding we mustn't have been overexpanding you mustn't have been overexpanding they mustn't have been overexpanding
Interrogative form
Simple form
must I overexpand? must you overexpand? must he overexpand? must we overexpand? must you overexpand? must they overexpand?
V-ing form
must I be overexpanding? must you be overexpanding? must he be overexpanding? must we be overexpanding? must you be overexpanding? must they be overexpanding?
Perfect
must I have overexpanded? must you have overexpanded? must he have overexpanded? must we have overexpanded? must you have overexpanded? must they have overexpanded?
V-ing perfect
must I have been overexpanding? must you have been overexpanding? must he have been overexpanding? must we have been overexpanding? must you have been overexpanding? must they have been overexpanding?
Interro-negative form
Simple form
mustn't I overexpand? mustn't you overexpand? mustn't he overexpand? mustn't we overexpand? mustn't you overexpand? mustn't they overexpand?
V-ing form
mustn't I be overexpanding? mustn't you be overexpanding? mustn't he be overexpanding? mustn't we be overexpanding? mustn't you be overexpanding? mustn't they be overexpanding?
Perfect
mustn't I have overexpanded? mustn't you have overexpanded? mustn't he have overexpanded? mustn't we have overexpanded? mustn't you have overexpanded? mustn't they have overexpanded?
V-ing perfect
mustn't I have been overexpanding? mustn't you have been overexpanding? mustn't he have been overexpanding? mustn't we have been overexpanding? mustn't you have been overexpanding? mustn't they have been overexpanding?