must room
Verbo regular: room - roomed- roomed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must room
you must room
he must room
we must room
you must room
they must room 	I must be rooming
you must be rooming
he must be rooming
we must be rooming
you must be rooming
they must be rooming	I must have roomed
you must have roomed
he must have roomed
we must have roomed
you must have roomed
they must have roomed	I must have been rooming
you must have been rooming
he must have been rooming
we must have been rooming
you must have been rooming
they must have been rooming	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not room
you must not room
he must not room
we must not room
you must not room
they must not room 	I must not be rooming
you must not be rooming
he must not be rooming
we must not be rooming
you must not be rooming
they must not be rooming	I must not have roomed
you must not have roomed
he must not have roomed
we must not have roomed
you must not have roomed
they must not have roomed	I must not have been rooming
you must not have been rooming
he must not have been rooming
we must not have been rooming
you must not have been rooming
they must not have been rooming	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I room?
must you room?
must he room?
must we room?
must you room?
must they room? 	must I be rooming?
must you be rooming?
must he be rooming?
must we be rooming?
must you be rooming?
must they be rooming? 	must I have roomed?
must you have roomed?
must he have roomed?
must we have roomed?
must you have roomed?
must they have roomed? 	must I have been rooming?
must you have been rooming?
must he have been rooming?
must we have been rooming?
must you have been rooming?
must they have been rooming? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not room?
must you not room?
must he not room?
must we not room?
must you not room?
must they not room? 	must I not be rooming?
must you not be rooming?
must he not be rooming?
must we not be rooming?
must you not be rooming?
must they not be rooming? 	must I not have roomed?
must you not have roomed?
must he not have roomed?
must we not have roomed?
must you not have roomed?
must they not have roomed? 	must I not have been rooming?
must you not have been rooming?
must he not have been rooming?
must we not have been rooming?
must you not have been rooming?
must they not have been rooming?