must bum
Verbe régulier : bum - bummed- bummed
Traduction française : taper - (US) vivre de la manche 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must bum
you must bum
she must bum
we must bum
you must bum
they must bum 	I must be bumming
you must be bumming
she must be bumming
we must be bumming
you must be bumming
they must be bumming	I must have bummed
you must have bummed
she must have bummed
we must have bummed
you must have bummed
they must have bummed	I must have been bumming
you must have been bumming
she must have been bumming
we must have been bumming
you must have been bumming
they must have been bumming	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not bum
you must not bum
she must not bum
we must not bum
you must not bum
they must not bum 	I must not be bumming
you must not be bumming
she must not be bumming
we must not be bumming
you must not be bumming
they must not be bumming	I must not have bummed
you must not have bummed
she must not have bummed
we must not have bummed
you must not have bummed
they must not have bummed	I must not have been bumming
you must not have been bumming
she must not have been bumming
we must not have been bumming
you must not have been bumming
they must not have been bumming	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I bum?
must you bum?
must she bum?
must we bum?
must you bum?
must they bum? 	must I be bumming?
must you be bumming?
must she be bumming?
must we be bumming?
must you be bumming?
must they be bumming? 	must I have bummed?
must you have bummed?
must she have bummed?
must we have bummed?
must you have bummed?
must they have bummed? 	must I have been bumming?
must you have been bumming?
must she have been bumming?
must we have been bumming?
must you have been bumming?
must they have been bumming? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not bum?
must you not bum?
must she not bum?
must we not bum?
must you not bum?
must they not bum? 	must I not be bumming?
must you not be bumming?
must she not be bumming?
must we not be bumming?
must you not be bumming?
must they not be bumming? 	must I not have bummed?
must you not have bummed?
must she not have bummed?
must we not have bummed?
must you not have bummed?
must they not have bummed? 	must I not have been bumming?
must you not have been bumming?
must she not have been bumming?
must we not have been bumming?
must you not have been bumming?
must they not have been bumming?