must vacuum
Verbe régulier : vacuum - vacuumed- vacuumed
Traduction française : passer l'aspirateur sur - passer l'aspirateur dans 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must vacuum
you must vacuum
he must vacuum
we must vacuum
you must vacuum
they must vacuum 	I must be vacuuming
you must be vacuuming
he must be vacuuming
we must be vacuuming
you must be vacuuming
they must be vacuuming	I must have vacuumed
you must have vacuumed
he must have vacuumed
we must have vacuumed
you must have vacuumed
they must have vacuumed	I must have been vacuuming
you must have been vacuuming
he must have been vacuuming
we must have been vacuuming
you must have been vacuuming
they must have been vacuuming	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not vacuum
you must not vacuum
he must not vacuum
we must not vacuum
you must not vacuum
they must not vacuum 	I must not be vacuuming
you must not be vacuuming
he must not be vacuuming
we must not be vacuuming
you must not be vacuuming
they must not be vacuuming	I must not have vacuumed
you must not have vacuumed
he must not have vacuumed
we must not have vacuumed
you must not have vacuumed
they must not have vacuumed	I must not have been vacuuming
you must not have been vacuuming
he must not have been vacuuming
we must not have been vacuuming
you must not have been vacuuming
they must not have been vacuuming	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I vacuum?
must you vacuum?
must he vacuum?
must we vacuum?
must you vacuum?
must they vacuum? 	must I be vacuuming?
must you be vacuuming?
must he be vacuuming?
must we be vacuuming?
must you be vacuuming?
must they be vacuuming? 	must I have vacuumed?
must you have vacuumed?
must he have vacuumed?
must we have vacuumed?
must you have vacuumed?
must they have vacuumed? 	must I have been vacuuming?
must you have been vacuuming?
must he have been vacuuming?
must we have been vacuuming?
must you have been vacuuming?
must they have been vacuuming? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not vacuum?
must you not vacuum?
must he not vacuum?
must we not vacuum?
must you not vacuum?
must they not vacuum? 	must I not be vacuuming?
must you not be vacuuming?
must he not be vacuuming?
must we not be vacuuming?
must you not be vacuuming?
must they not be vacuuming? 	must I not have vacuumed?
must you not have vacuumed?
must he not have vacuumed?
must we not have vacuumed?
must you not have vacuumed?
must they not have vacuumed? 	must I not have been vacuuming?
must you not have been vacuuming?
must he not have been vacuuming?
must we not have been vacuuming?
must you not have been vacuuming?
must they not have been vacuuming?