must decarburise
Verbe régulier : decarburise - decarburised- decarburised

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must decarburise
you must decarburise
she must decarburise
we must decarburise
you must decarburise
they must decarburise 	I must be decarburising
you must be decarburising
she must be decarburising
we must be decarburising
you must be decarburising
they must be decarburising	I must have decarburised
you must have decarburised
she must have decarburised
we must have decarburised
you must have decarburised
they must have decarburised	I must have been decarburising
you must have been decarburising
she must have been decarburising
we must have been decarburising
you must have been decarburising
they must have been decarburising	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't decarburise
you mustn't decarburise
she mustn't decarburise
we mustn't decarburise
you mustn't decarburise
they mustn't decarburise 	I mustn't be decarburising
you mustn't be decarburising
she mustn't be decarburising
we mustn't be decarburising
you mustn't be decarburising
they mustn't be decarburising	I mustn't have decarburised
you mustn't have decarburised
she mustn't have decarburised
we mustn't have decarburised
you mustn't have decarburised
they mustn't have decarburised	I mustn't have been decarburising
you mustn't have been decarburising
she mustn't have been decarburising
we mustn't have been decarburising
you mustn't have been decarburising
they mustn't have been decarburising	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I decarburise?
must you decarburise?
must she decarburise?
must we decarburise?
must you decarburise?
must they decarburise? 	must I be decarburising?
must you be decarburising?
must she be decarburising?
must we be decarburising?
must you be decarburising?
must they be decarburising? 	must I have decarburised?
must you have decarburised?
must she have decarburised?
must we have decarburised?
must you have decarburised?
must they have decarburised? 	must I have been decarburising?
must you have been decarburising?
must she have been decarburising?
must we have been decarburising?
must you have been decarburising?
must they have been decarburising? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I decarburise?
mustn't you decarburise?
mustn't she decarburise?
mustn't we decarburise?
mustn't you decarburise?
mustn't they decarburise? 	mustn't I be decarburising?
mustn't you be decarburising?
mustn't she be decarburising?
mustn't we be decarburising?
mustn't you be decarburising?
mustn't they be decarburising? 	mustn't I have decarburised?
mustn't you have decarburised?
mustn't she have decarburised?
mustn't we have decarburised?
mustn't you have decarburised?
mustn't they have decarburised? 	mustn't I have been decarburising?
mustn't you have been decarburising?
mustn't she have been decarburising?
mustn't we have been decarburising?
mustn't you have been decarburising?
mustn't they have been decarburising?