must scream
Verbo regular: scream - screamed- screamed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must scream
you must scream
he must scream
we must scream
you must scream
they must scream 	I must be screaming
you must be screaming
he must be screaming
we must be screaming
you must be screaming
they must be screaming	I must have screamed
you must have screamed
he must have screamed
we must have screamed
you must have screamed
they must have screamed	I must have been screaming
you must have been screaming
he must have been screaming
we must have been screaming
you must have been screaming
they must have been screaming	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not scream
you must not scream
he must not scream
we must not scream
you must not scream
they must not scream 	I must not be screaming
you must not be screaming
he must not be screaming
we must not be screaming
you must not be screaming
they must not be screaming	I must not have screamed
you must not have screamed
he must not have screamed
we must not have screamed
you must not have screamed
they must not have screamed	I must not have been screaming
you must not have been screaming
he must not have been screaming
we must not have been screaming
you must not have been screaming
they must not have been screaming	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I scream?
must you scream?
must he scream?
must we scream?
must you scream?
must they scream? 	must I be screaming?
must you be screaming?
must he be screaming?
must we be screaming?
must you be screaming?
must they be screaming? 	must I have screamed?
must you have screamed?
must he have screamed?
must we have screamed?
must you have screamed?
must they have screamed? 	must I have been screaming?
must you have been screaming?
must he have been screaming?
must we have been screaming?
must you have been screaming?
must they have been screaming? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not scream?
must you not scream?
must he not scream?
must we not scream?
must you not scream?
must they not scream? 	must I not be screaming?
must you not be screaming?
must he not be screaming?
must we not be screaming?
must you not be screaming?
must they not be screaming? 	must I not have screamed?
must you not have screamed?
must he not have screamed?
must we not have screamed?
must you not have screamed?
must they not have screamed? 	must I not have been screaming?
must you not have been screaming?
must he not have been screaming?
must we not have been screaming?
must you not have been screaming?
must they not have been screaming?