must unburden
Verbe régulier : unburden - unburdened- unburdened
Traduction française : décharger (d'un fardeau) - livrer 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must unburden
you must unburden
she must unburden
we must unburden
you must unburden
they must unburden 	I must be unburdening
you must be unburdening
she must be unburdening
we must be unburdening
you must be unburdening
they must be unburdening	I must have unburdened
you must have unburdened
she must have unburdened
we must have unburdened
you must have unburdened
they must have unburdened	I must have been unburdening
you must have been unburdening
she must have been unburdening
we must have been unburdening
you must have been unburdening
they must have been unburdening	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't unburden
you mustn't unburden
she mustn't unburden
we mustn't unburden
you mustn't unburden
they mustn't unburden 	I mustn't be unburdening
you mustn't be unburdening
she mustn't be unburdening
we mustn't be unburdening
you mustn't be unburdening
they mustn't be unburdening	I mustn't have unburdened
you mustn't have unburdened
she mustn't have unburdened
we mustn't have unburdened
you mustn't have unburdened
they mustn't have unburdened	I mustn't have been unburdening
you mustn't have been unburdening
she mustn't have been unburdening
we mustn't have been unburdening
you mustn't have been unburdening
they mustn't have been unburdening	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I unburden?
must you unburden?
must she unburden?
must we unburden?
must you unburden?
must they unburden? 	must I be unburdening?
must you be unburdening?
must she be unburdening?
must we be unburdening?
must you be unburdening?
must they be unburdening? 	must I have unburdened?
must you have unburdened?
must she have unburdened?
must we have unburdened?
must you have unburdened?
must they have unburdened? 	must I have been unburdening?
must you have been unburdening?
must she have been unburdening?
must we have been unburdening?
must you have been unburdening?
must they have been unburdening? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I unburden?
mustn't you unburden?
mustn't she unburden?
mustn't we unburden?
mustn't you unburden?
mustn't they unburden? 	mustn't I be unburdening?
mustn't you be unburdening?
mustn't she be unburdening?
mustn't we be unburdening?
mustn't you be unburdening?
mustn't they be unburdening? 	mustn't I have unburdened?
mustn't you have unburdened?
mustn't she have unburdened?
mustn't we have unburdened?
mustn't you have unburdened?
mustn't they have unburdened? 	mustn't I have been unburdening?
mustn't you have been unburdening?
mustn't she have been unburdening?
mustn't we have been unburdening?
mustn't you have been unburdening?
mustn't they have been unburdening?