must silence
Verbo regular: silence - silenced- silenced

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must silence
you must silence
he must silence
we must silence
you must silence
they must silence 	I must be silencing
you must be silencing
he must be silencing
we must be silencing
you must be silencing
they must be silencing	I must have silenced
you must have silenced
he must have silenced
we must have silenced
you must have silenced
they must have silenced	I must have been silencing
you must have been silencing
he must have been silencing
we must have been silencing
you must have been silencing
they must have been silencing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not silence
you must not silence
he must not silence
we must not silence
you must not silence
they must not silence 	I must not be silencing
you must not be silencing
he must not be silencing
we must not be silencing
you must not be silencing
they must not be silencing	I must not have silenced
you must not have silenced
he must not have silenced
we must not have silenced
you must not have silenced
they must not have silenced	I must not have been silencing
you must not have been silencing
he must not have been silencing
we must not have been silencing
you must not have been silencing
they must not have been silencing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I silence?
must you silence?
must he silence?
must we silence?
must you silence?
must they silence? 	must I be silencing?
must you be silencing?
must he be silencing?
must we be silencing?
must you be silencing?
must they be silencing? 	must I have silenced?
must you have silenced?
must he have silenced?
must we have silenced?
must you have silenced?
must they have silenced? 	must I have been silencing?
must you have been silencing?
must he have been silencing?
must we have been silencing?
must you have been silencing?
must they have been silencing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not silence?
must you not silence?
must he not silence?
must we not silence?
must you not silence?
must they not silence? 	must I not be silencing?
must you not be silencing?
must he not be silencing?
must we not be silencing?
must you not be silencing?
must they not be silencing? 	must I not have silenced?
must you not have silenced?
must he not have silenced?
must we not have silenced?
must you not have silenced?
must they not have silenced? 	must I not have been silencing?
must you not have been silencing?
must he not have been silencing?
must we not have been silencing?
must you not have been silencing?
must they not have been silencing?