must lump
Verbe régulier : lump - lumped- lumped
Traduction française : regrouper 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must lump
you must lump
he must lump
we must lump
you must lump
they must lump 	I must be lumping
you must be lumping
he must be lumping
we must be lumping
you must be lumping
they must be lumping	I must have lumped
you must have lumped
he must have lumped
we must have lumped
you must have lumped
they must have lumped	I must have been lumping
you must have been lumping
he must have been lumping
we must have been lumping
you must have been lumping
they must have been lumping	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't lump
you mustn't lump
he mustn't lump
we mustn't lump
you mustn't lump
they mustn't lump 	I mustn't be lumping
you mustn't be lumping
he mustn't be lumping
we mustn't be lumping
you mustn't be lumping
they mustn't be lumping	I mustn't have lumped
you mustn't have lumped
he mustn't have lumped
we mustn't have lumped
you mustn't have lumped
they mustn't have lumped	I mustn't have been lumping
you mustn't have been lumping
he mustn't have been lumping
we mustn't have been lumping
you mustn't have been lumping
they mustn't have been lumping	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I lump?
must you lump?
must he lump?
must we lump?
must you lump?
must they lump? 	must I be lumping?
must you be lumping?
must he be lumping?
must we be lumping?
must you be lumping?
must they be lumping? 	must I have lumped?
must you have lumped?
must he have lumped?
must we have lumped?
must you have lumped?
must they have lumped? 	must I have been lumping?
must you have been lumping?
must he have been lumping?
must we have been lumping?
must you have been lumping?
must they have been lumping? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I lump?
mustn't you lump?
mustn't he lump?
mustn't we lump?
mustn't you lump?
mustn't they lump? 	mustn't I be lumping?
mustn't you be lumping?
mustn't he be lumping?
mustn't we be lumping?
mustn't you be lumping?
mustn't they be lumping? 	mustn't I have lumped?
mustn't you have lumped?
mustn't he have lumped?
mustn't we have lumped?
mustn't you have lumped?
mustn't they have lumped? 	mustn't I have been lumping?
mustn't you have been lumping?
mustn't he have been lumping?
mustn't we have been lumping?
mustn't you have been lumping?
mustn't they have been lumping?