must cipher
Verbo regular: cipher - ciphered- ciphered

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must cipher
you must cipher
he must cipher
we must cipher
you must cipher
they must cipher 	I must be ciphering
you must be ciphering
he must be ciphering
we must be ciphering
you must be ciphering
they must be ciphering	I must have ciphered
you must have ciphered
he must have ciphered
we must have ciphered
you must have ciphered
they must have ciphered	I must have been ciphering
you must have been ciphering
he must have been ciphering
we must have been ciphering
you must have been ciphering
they must have been ciphering	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not cipher
you must not cipher
he must not cipher
we must not cipher
you must not cipher
they must not cipher 	I must not be ciphering
you must not be ciphering
he must not be ciphering
we must not be ciphering
you must not be ciphering
they must not be ciphering	I must not have ciphered
you must not have ciphered
he must not have ciphered
we must not have ciphered
you must not have ciphered
they must not have ciphered	I must not have been ciphering
you must not have been ciphering
he must not have been ciphering
we must not have been ciphering
you must not have been ciphering
they must not have been ciphering	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I cipher?
must you cipher?
must he cipher?
must we cipher?
must you cipher?
must they cipher? 	must I be ciphering?
must you be ciphering?
must he be ciphering?
must we be ciphering?
must you be ciphering?
must they be ciphering? 	must I have ciphered?
must you have ciphered?
must he have ciphered?
must we have ciphered?
must you have ciphered?
must they have ciphered? 	must I have been ciphering?
must you have been ciphering?
must he have been ciphering?
must we have been ciphering?
must you have been ciphering?
must they have been ciphering? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not cipher?
must you not cipher?
must he not cipher?
must we not cipher?
must you not cipher?
must they not cipher? 	must I not be ciphering?
must you not be ciphering?
must he not be ciphering?
must we not be ciphering?
must you not be ciphering?
must they not be ciphering? 	must I not have ciphered?
must you not have ciphered?
must he not have ciphered?
must we not have ciphered?
must you not have ciphered?
must they not have ciphered? 	must I not have been ciphering?
must you not have been ciphering?
must he not have been ciphering?
must we not have been ciphering?
must you not have been ciphering?
must they not have been ciphering?