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
she must lump
we must lump
you must lump
they must lump 	I must be lumping
you must be lumping
she must be lumping
we must be lumping
you must be lumping
they must be lumping	I must have lumped
you must have lumped
she 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
she 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
she 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
she 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
she 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
she 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 she lump?
must we lump?
must you lump?
must they lump? 	must I be lumping?
must you be lumping?
must she be lumping?
must we be lumping?
must you be lumping?
must they be lumping? 	must I have lumped?
must you have lumped?
must she 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 she 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 she 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 she 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 she 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 she have been lumping?
mustn't we have been lumping?
mustn't you have been lumping?
mustn't they have been lumping?