must scrump
Verbe régulier : scrump - scrumped- scrumped

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must scrump
you must scrump
she must scrump
we must scrump
you must scrump
they must scrump 	I must be scrumping
you must be scrumping
she must be scrumping
we must be scrumping
you must be scrumping
they must be scrumping	I must have scrumped
you must have scrumped
she must have scrumped
we must have scrumped
you must have scrumped
they must have scrumped	I must have been scrumping
you must have been scrumping
she must have been scrumping
we must have been scrumping
you must have been scrumping
they must have been scrumping	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't scrump
you mustn't scrump
she mustn't scrump
we mustn't scrump
you mustn't scrump
they mustn't scrump 	I mustn't be scrumping
you mustn't be scrumping
she mustn't be scrumping
we mustn't be scrumping
you mustn't be scrumping
they mustn't be scrumping	I mustn't have scrumped
you mustn't have scrumped
she mustn't have scrumped
we mustn't have scrumped
you mustn't have scrumped
they mustn't have scrumped	I mustn't have been scrumping
you mustn't have been scrumping
she mustn't have been scrumping
we mustn't have been scrumping
you mustn't have been scrumping
they mustn't have been scrumping	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I scrump?
must you scrump?
must she scrump?
must we scrump?
must you scrump?
must they scrump? 	must I be scrumping?
must you be scrumping?
must she be scrumping?
must we be scrumping?
must you be scrumping?
must they be scrumping? 	must I have scrumped?
must you have scrumped?
must she have scrumped?
must we have scrumped?
must you have scrumped?
must they have scrumped? 	must I have been scrumping?
must you have been scrumping?
must she have been scrumping?
must we have been scrumping?
must you have been scrumping?
must they have been scrumping? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I scrump?
mustn't you scrump?
mustn't she scrump?
mustn't we scrump?
mustn't you scrump?
mustn't they scrump? 	mustn't I be scrumping?
mustn't you be scrumping?
mustn't she be scrumping?
mustn't we be scrumping?
mustn't you be scrumping?
mustn't they be scrumping? 	mustn't I have scrumped?
mustn't you have scrumped?
mustn't she have scrumped?
mustn't we have scrumped?
mustn't you have scrumped?
mustn't they have scrumped? 	mustn't I have been scrumping?
mustn't you have been scrumping?
mustn't she have been scrumping?
mustn't we have been scrumping?
mustn't you have been scrumping?
mustn't they have been scrumping?