must disappear
Verbe régulier : disappear - disappeared- disappeared
Traduction française : disparaître - s'égarer 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must disappear
you must disappear
he must disappear
we must disappear
you must disappear
they must disappear 	I must be disappearing
you must be disappearing
he must be disappearing
we must be disappearing
you must be disappearing
they must be disappearing	I must have disappeared
you must have disappeared
he must have disappeared
we must have disappeared
you must have disappeared
they must have disappeared	I must have been disappearing
you must have been disappearing
he must have been disappearing
we must have been disappearing
you must have been disappearing
they must have been disappearing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't disappear
you mustn't disappear
he mustn't disappear
we mustn't disappear
you mustn't disappear
they mustn't disappear 	I mustn't be disappearing
you mustn't be disappearing
he mustn't be disappearing
we mustn't be disappearing
you mustn't be disappearing
they mustn't be disappearing	I mustn't have disappeared
you mustn't have disappeared
he mustn't have disappeared
we mustn't have disappeared
you mustn't have disappeared
they mustn't have disappeared	I mustn't have been disappearing
you mustn't have been disappearing
he mustn't have been disappearing
we mustn't have been disappearing
you mustn't have been disappearing
they mustn't have been disappearing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I disappear?
must you disappear?
must he disappear?
must we disappear?
must you disappear?
must they disappear? 	must I be disappearing?
must you be disappearing?
must he be disappearing?
must we be disappearing?
must you be disappearing?
must they be disappearing? 	must I have disappeared?
must you have disappeared?
must he have disappeared?
must we have disappeared?
must you have disappeared?
must they have disappeared? 	must I have been disappearing?
must you have been disappearing?
must he have been disappearing?
must we have been disappearing?
must you have been disappearing?
must they have been disappearing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I disappear?
mustn't you disappear?
mustn't he disappear?
mustn't we disappear?
mustn't you disappear?
mustn't they disappear? 	mustn't I be disappearing?
mustn't you be disappearing?
mustn't he be disappearing?
mustn't we be disappearing?
mustn't you be disappearing?
mustn't they be disappearing? 	mustn't I have disappeared?
mustn't you have disappeared?
mustn't he have disappeared?
mustn't we have disappeared?
mustn't you have disappeared?
mustn't they have disappeared? 	mustn't I have been disappearing?
mustn't you have been disappearing?
mustn't he have been disappearing?
mustn't we have been disappearing?
mustn't you have been disappearing?
mustn't they have been disappearing?