must demist
Verbe régulier : demist - demisted- demisted
Traduction française : (UK) désembuer 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must demist
you must demist
he must demist
we must demist
you must demist
they must demist 	I must be demisting
you must be demisting
he must be demisting
we must be demisting
you must be demisting
they must be demisting	I must have demisted
you must have demisted
he must have demisted
we must have demisted
you must have demisted
they must have demisted	I must have been demisting
you must have been demisting
he must have been demisting
we must have been demisting
you must have been demisting
they must have been demisting	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't demist
you mustn't demist
he mustn't demist
we mustn't demist
you mustn't demist
they mustn't demist 	I mustn't be demisting
you mustn't be demisting
he mustn't be demisting
we mustn't be demisting
you mustn't be demisting
they mustn't be demisting	I mustn't have demisted
you mustn't have demisted
he mustn't have demisted
we mustn't have demisted
you mustn't have demisted
they mustn't have demisted	I mustn't have been demisting
you mustn't have been demisting
he mustn't have been demisting
we mustn't have been demisting
you mustn't have been demisting
they mustn't have been demisting	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I demist?
must you demist?
must he demist?
must we demist?
must you demist?
must they demist? 	must I be demisting?
must you be demisting?
must he be demisting?
must we be demisting?
must you be demisting?
must they be demisting? 	must I have demisted?
must you have demisted?
must he have demisted?
must we have demisted?
must you have demisted?
must they have demisted? 	must I have been demisting?
must you have been demisting?
must he have been demisting?
must we have been demisting?
must you have been demisting?
must they have been demisting? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I demist?
mustn't you demist?
mustn't he demist?
mustn't we demist?
mustn't you demist?
mustn't they demist? 	mustn't I be demisting?
mustn't you be demisting?
mustn't he be demisting?
mustn't we be demisting?
mustn't you be demisting?
mustn't they be demisting? 	mustn't I have demisted?
mustn't you have demisted?
mustn't he have demisted?
mustn't we have demisted?
mustn't you have demisted?
mustn't they have demisted? 	mustn't I have been demisting?
mustn't you have been demisting?
mustn't he have been demisting?
mustn't we have been demisting?
mustn't you have been demisting?
mustn't they have been demisting?