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
he must scrump
we must scrump
you must scrump
they must scrump 	I must be scrumping
you must be scrumping
he must be scrumping
we must be scrumping
you must be scrumping
they must be scrumping	I must have scrumped
you must have scrumped
he 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
he 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 must not scrump
you must not scrump
he must not scrump
we must not scrump
you must not scrump
they must not scrump 	I must not be scrumping
you must not be scrumping
he must not be scrumping
we must not be scrumping
you must not be scrumping
they must not be scrumping	I must not have scrumped
you must not have scrumped
he must not have scrumped
we must not have scrumped
you must not have scrumped
they must not have scrumped	I must not have been scrumping
you must not have been scrumping
he must not have been scrumping
we must not have been scrumping
you must not have been scrumping
they must not have been scrumping	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I scrump?
must you scrump?
must he scrump?
must we scrump?
must you scrump?
must they scrump? 	must I be scrumping?
must you be scrumping?
must he be scrumping?
must we be scrumping?
must you be scrumping?
must they be scrumping? 	must I have scrumped?
must you have scrumped?
must he 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 he 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 	
must I not scrump?
must you not scrump?
must he not scrump?
must we not scrump?
must you not scrump?
must they not scrump? 	must I not be scrumping?
must you not be scrumping?
must he not be scrumping?
must we not be scrumping?
must you not be scrumping?
must they not be scrumping? 	must I not have scrumped?
must you not have scrumped?
must he not have scrumped?
must we not have scrumped?
must you not have scrumped?
must they not have scrumped? 	must I not have been scrumping?
must you not have been scrumping?
must he not have been scrumping?
must we not have been scrumping?
must you not have been scrumping?
must they not have been scrumping?