must devitalise
Verbe régulier : devitalise - devitalised- devitalised
Traduction française : (UK) affaiblir 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must devitalise
you must devitalise
he must devitalise
we must devitalise
you must devitalise
they must devitalise 	I must be devitalising
you must be devitalising
he must be devitalising
we must be devitalising
you must be devitalising
they must be devitalising	I must have devitalised
you must have devitalised
he must have devitalised
we must have devitalised
you must have devitalised
they must have devitalised	I must have been devitalising
you must have been devitalising
he must have been devitalising
we must have been devitalising
you must have been devitalising
they must have been devitalising	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't devitalise
you mustn't devitalise
he mustn't devitalise
we mustn't devitalise
you mustn't devitalise
they mustn't devitalise 	I mustn't be devitalising
you mustn't be devitalising
he mustn't be devitalising
we mustn't be devitalising
you mustn't be devitalising
they mustn't be devitalising	I mustn't have devitalised
you mustn't have devitalised
he mustn't have devitalised
we mustn't have devitalised
you mustn't have devitalised
they mustn't have devitalised	I mustn't have been devitalising
you mustn't have been devitalising
he mustn't have been devitalising
we mustn't have been devitalising
you mustn't have been devitalising
they mustn't have been devitalising	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I devitalise?
must you devitalise?
must he devitalise?
must we devitalise?
must you devitalise?
must they devitalise? 	must I be devitalising?
must you be devitalising?
must he be devitalising?
must we be devitalising?
must you be devitalising?
must they be devitalising? 	must I have devitalised?
must you have devitalised?
must he have devitalised?
must we have devitalised?
must you have devitalised?
must they have devitalised? 	must I have been devitalising?
must you have been devitalising?
must he have been devitalising?
must we have been devitalising?
must you have been devitalising?
must they have been devitalising? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I devitalise?
mustn't you devitalise?
mustn't he devitalise?
mustn't we devitalise?
mustn't you devitalise?
mustn't they devitalise? 	mustn't I be devitalising?
mustn't you be devitalising?
mustn't he be devitalising?
mustn't we be devitalising?
mustn't you be devitalising?
mustn't they be devitalising? 	mustn't I have devitalised?
mustn't you have devitalised?
mustn't he have devitalised?
mustn't we have devitalised?
mustn't you have devitalised?
mustn't they have devitalised? 	mustn't I have been devitalising?
mustn't you have been devitalising?
mustn't he have been devitalising?
mustn't we have been devitalising?
mustn't you have been devitalising?
mustn't they have been devitalising?