must decarbonise
Verbe régulier : decarbonise - decarbonised- decarbonised

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must decarbonise
you must decarbonise
he must decarbonise
we must decarbonise
you must decarbonise
they must decarbonise 	I must be decarbonising
you must be decarbonising
he must be decarbonising
we must be decarbonising
you must be decarbonising
they must be decarbonising	I must have decarbonised
you must have decarbonised
he must have decarbonised
we must have decarbonised
you must have decarbonised
they must have decarbonised	I must have been decarbonising
you must have been decarbonising
he must have been decarbonising
we must have been decarbonising
you must have been decarbonising
they must have been decarbonising	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't decarbonise
you mustn't decarbonise
he mustn't decarbonise
we mustn't decarbonise
you mustn't decarbonise
they mustn't decarbonise 	I mustn't be decarbonising
you mustn't be decarbonising
he mustn't be decarbonising
we mustn't be decarbonising
you mustn't be decarbonising
they mustn't be decarbonising	I mustn't have decarbonised
you mustn't have decarbonised
he mustn't have decarbonised
we mustn't have decarbonised
you mustn't have decarbonised
they mustn't have decarbonised	I mustn't have been decarbonising
you mustn't have been decarbonising
he mustn't have been decarbonising
we mustn't have been decarbonising
you mustn't have been decarbonising
they mustn't have been decarbonising	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I decarbonise?
must you decarbonise?
must he decarbonise?
must we decarbonise?
must you decarbonise?
must they decarbonise? 	must I be decarbonising?
must you be decarbonising?
must he be decarbonising?
must we be decarbonising?
must you be decarbonising?
must they be decarbonising? 	must I have decarbonised?
must you have decarbonised?
must he have decarbonised?
must we have decarbonised?
must you have decarbonised?
must they have decarbonised? 	must I have been decarbonising?
must you have been decarbonising?
must he have been decarbonising?
must we have been decarbonising?
must you have been decarbonising?
must they have been decarbonising? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I decarbonise?
mustn't you decarbonise?
mustn't he decarbonise?
mustn't we decarbonise?
mustn't you decarbonise?
mustn't they decarbonise? 	mustn't I be decarbonising?
mustn't you be decarbonising?
mustn't he be decarbonising?
mustn't we be decarbonising?
mustn't you be decarbonising?
mustn't they be decarbonising? 	mustn't I have decarbonised?
mustn't you have decarbonised?
mustn't he have decarbonised?
mustn't we have decarbonised?
mustn't you have decarbonised?
mustn't they have decarbonised? 	mustn't I have been decarbonising?
mustn't you have been decarbonising?
mustn't he have been decarbonising?
mustn't we have been decarbonising?
mustn't you have been decarbonising?
mustn't they have been decarbonising?