must bur
Verbe régulier : bur - bured- bured
Traduction française : enlever les bardanes de 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must bur
you must bur
she must bur
we must bur
you must bur
they must bur 	I must be buring
you must be buring
she must be buring
we must be buring
you must be buring
they must be buring	I must have bured
you must have bured
she must have bured
we must have bured
you must have bured
they must have bured	I must have been buring
you must have been buring
she must have been buring
we must have been buring
you must have been buring
they must have been buring	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't bur
you mustn't bur
she mustn't bur
we mustn't bur
you mustn't bur
they mustn't bur 	I mustn't be buring
you mustn't be buring
she mustn't be buring
we mustn't be buring
you mustn't be buring
they mustn't be buring	I mustn't have bured
you mustn't have bured
she mustn't have bured
we mustn't have bured
you mustn't have bured
they mustn't have bured	I mustn't have been buring
you mustn't have been buring
she mustn't have been buring
we mustn't have been buring
you mustn't have been buring
they mustn't have been buring	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I bur?
must you bur?
must she bur?
must we bur?
must you bur?
must they bur? 	must I be buring?
must you be buring?
must she be buring?
must we be buring?
must you be buring?
must they be buring? 	must I have bured?
must you have bured?
must she have bured?
must we have bured?
must you have bured?
must they have bured? 	must I have been buring?
must you have been buring?
must she have been buring?
must we have been buring?
must you have been buring?
must they have been buring? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I bur?
mustn't you bur?
mustn't she bur?
mustn't we bur?
mustn't you bur?
mustn't they bur? 	mustn't I be buring?
mustn't you be buring?
mustn't she be buring?
mustn't we be buring?
mustn't you be buring?
mustn't they be buring? 	mustn't I have bured?
mustn't you have bured?
mustn't she have bured?
mustn't we have bured?
mustn't you have bured?
mustn't they have bured? 	mustn't I have been buring?
mustn't you have been buring?
mustn't she have been buring?
mustn't we have been buring?
mustn't you have been buring?
mustn't they have been buring?