must penetrate
Verbo regular: penetrate - penetrated- penetrated

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must penetrate
you must penetrate
she must penetrate
we must penetrate
you must penetrate
they must penetrate 	I must be penetrating
you must be penetrating
she must be penetrating
we must be penetrating
you must be penetrating
they must be penetrating	I must have penetrated
you must have penetrated
she must have penetrated
we must have penetrated
you must have penetrated
they must have penetrated	I must have been penetrating
you must have been penetrating
she must have been penetrating
we must have been penetrating
you must have been penetrating
they must have been penetrating	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not penetrate
you must not penetrate
she must not penetrate
we must not penetrate
you must not penetrate
they must not penetrate 	I must not be penetrating
you must not be penetrating
she must not be penetrating
we must not be penetrating
you must not be penetrating
they must not be penetrating	I must not have penetrated
you must not have penetrated
she must not have penetrated
we must not have penetrated
you must not have penetrated
they must not have penetrated	I must not have been penetrating
you must not have been penetrating
she must not have been penetrating
we must not have been penetrating
you must not have been penetrating
they must not have been penetrating	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I penetrate?
must you penetrate?
must she penetrate?
must we penetrate?
must you penetrate?
must they penetrate? 	must I be penetrating?
must you be penetrating?
must she be penetrating?
must we be penetrating?
must you be penetrating?
must they be penetrating? 	must I have penetrated?
must you have penetrated?
must she have penetrated?
must we have penetrated?
must you have penetrated?
must they have penetrated? 	must I have been penetrating?
must you have been penetrating?
must she have been penetrating?
must we have been penetrating?
must you have been penetrating?
must they have been penetrating? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not penetrate?
must you not penetrate?
must she not penetrate?
must we not penetrate?
must you not penetrate?
must they not penetrate? 	must I not be penetrating?
must you not be penetrating?
must she not be penetrating?
must we not be penetrating?
must you not be penetrating?
must they not be penetrating? 	must I not have penetrated?
must you not have penetrated?
must she not have penetrated?
must we not have penetrated?
must you not have penetrated?
must they not have penetrated? 	must I not have been penetrating?
must you not have been penetrating?
must she not have been penetrating?
must we not have been penetrating?
must you not have been penetrating?
must they not have been penetrating?