must modulate
Verbo regular: modulate - modulated- modulated

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must modulate
you must modulate
she must modulate
we must modulate
you must modulate
they must modulate 	I must be modulating
you must be modulating
she must be modulating
we must be modulating
you must be modulating
they must be modulating	I must have modulated
you must have modulated
she must have modulated
we must have modulated
you must have modulated
they must have modulated	I must have been modulating
you must have been modulating
she must have been modulating
we must have been modulating
you must have been modulating
they must have been modulating	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not modulate
you must not modulate
she must not modulate
we must not modulate
you must not modulate
they must not modulate 	I must not be modulating
you must not be modulating
she must not be modulating
we must not be modulating
you must not be modulating
they must not be modulating	I must not have modulated
you must not have modulated
she must not have modulated
we must not have modulated
you must not have modulated
they must not have modulated	I must not have been modulating
you must not have been modulating
she must not have been modulating
we must not have been modulating
you must not have been modulating
they must not have been modulating	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I modulate?
must you modulate?
must she modulate?
must we modulate?
must you modulate?
must they modulate? 	must I be modulating?
must you be modulating?
must she be modulating?
must we be modulating?
must you be modulating?
must they be modulating? 	must I have modulated?
must you have modulated?
must she have modulated?
must we have modulated?
must you have modulated?
must they have modulated? 	must I have been modulating?
must you have been modulating?
must she have been modulating?
must we have been modulating?
must you have been modulating?
must they have been modulating? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not modulate?
must you not modulate?
must she not modulate?
must we not modulate?
must you not modulate?
must they not modulate? 	must I not be modulating?
must you not be modulating?
must she not be modulating?
must we not be modulating?
must you not be modulating?
must they not be modulating? 	must I not have modulated?
must you not have modulated?
must she not have modulated?
must we not have modulated?
must you not have modulated?
must they not have modulated? 	must I not have been modulating?
must you not have been modulating?
must she not have been modulating?
must we not have been modulating?
must you not have been modulating?
must they not have been modulating?