must bluff
Verbo regular: bluff - bluffed- bluffed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must bluff
you must bluff
he must bluff
we must bluff
you must bluff
they must bluff 	I must be bluffing
you must be bluffing
he must be bluffing
we must be bluffing
you must be bluffing
they must be bluffing	I must have bluffed
you must have bluffed
he must have bluffed
we must have bluffed
you must have bluffed
they must have bluffed	I must have been bluffing
you must have been bluffing
he must have been bluffing
we must have been bluffing
you must have been bluffing
they must have been bluffing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not bluff
you must not bluff
he must not bluff
we must not bluff
you must not bluff
they must not bluff 	I must not be bluffing
you must not be bluffing
he must not be bluffing
we must not be bluffing
you must not be bluffing
they must not be bluffing	I must not have bluffed
you must not have bluffed
he must not have bluffed
we must not have bluffed
you must not have bluffed
they must not have bluffed	I must not have been bluffing
you must not have been bluffing
he must not have been bluffing
we must not have been bluffing
you must not have been bluffing
they must not have been bluffing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I bluff?
must you bluff?
must he bluff?
must we bluff?
must you bluff?
must they bluff? 	must I be bluffing?
must you be bluffing?
must he be bluffing?
must we be bluffing?
must you be bluffing?
must they be bluffing? 	must I have bluffed?
must you have bluffed?
must he have bluffed?
must we have bluffed?
must you have bluffed?
must they have bluffed? 	must I have been bluffing?
must you have been bluffing?
must he have been bluffing?
must we have been bluffing?
must you have been bluffing?
must they have been bluffing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not bluff?
must you not bluff?
must he not bluff?
must we not bluff?
must you not bluff?
must they not bluff? 	must I not be bluffing?
must you not be bluffing?
must he not be bluffing?
must we not be bluffing?
must you not be bluffing?
must they not be bluffing? 	must I not have bluffed?
must you not have bluffed?
must he not have bluffed?
must we not have bluffed?
must you not have bluffed?
must they not have bluffed? 	must I not have been bluffing?
must you not have been bluffing?
must he not have been bluffing?
must we not have been bluffing?
must you not have been bluffing?
must they not have been bluffing?