must clump
Verbe régulier : clump - clumped- clumped
Traduction française : marcher d'un pas lourd - grouper 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must clump
you must clump
she must clump
we must clump
you must clump
they must clump 	I must be clumping
you must be clumping
she must be clumping
we must be clumping
you must be clumping
they must be clumping	I must have clumped
you must have clumped
she must have clumped
we must have clumped
you must have clumped
they must have clumped	I must have been clumping
you must have been clumping
she must have been clumping
we must have been clumping
you must have been clumping
they must have been clumping	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't clump
you mustn't clump
she mustn't clump
we mustn't clump
you mustn't clump
they mustn't clump 	I mustn't be clumping
you mustn't be clumping
she mustn't be clumping
we mustn't be clumping
you mustn't be clumping
they mustn't be clumping	I mustn't have clumped
you mustn't have clumped
she mustn't have clumped
we mustn't have clumped
you mustn't have clumped
they mustn't have clumped	I mustn't have been clumping
you mustn't have been clumping
she mustn't have been clumping
we mustn't have been clumping
you mustn't have been clumping
they mustn't have been clumping	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I clump?
must you clump?
must she clump?
must we clump?
must you clump?
must they clump? 	must I be clumping?
must you be clumping?
must she be clumping?
must we be clumping?
must you be clumping?
must they be clumping? 	must I have clumped?
must you have clumped?
must she have clumped?
must we have clumped?
must you have clumped?
must they have clumped? 	must I have been clumping?
must you have been clumping?
must she have been clumping?
must we have been clumping?
must you have been clumping?
must they have been clumping? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I clump?
mustn't you clump?
mustn't she clump?
mustn't we clump?
mustn't you clump?
mustn't they clump? 	mustn't I be clumping?
mustn't you be clumping?
mustn't she be clumping?
mustn't we be clumping?
mustn't you be clumping?
mustn't they be clumping? 	mustn't I have clumped?
mustn't you have clumped?
mustn't she have clumped?
mustn't we have clumped?
mustn't you have clumped?
mustn't they have clumped? 	mustn't I have been clumping?
mustn't you have been clumping?
mustn't she have been clumping?
mustn't we have been clumping?
mustn't you have been clumping?
mustn't they have been clumping?