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 mustn't cipher
you mustn't cipher
he mustn't cipher
we mustn't cipher
you mustn't cipher
they mustn't cipher 	I mustn't be ciphering
you mustn't be ciphering
he mustn't be ciphering
we mustn't be ciphering
you mustn't be ciphering
they mustn't be ciphering	I mustn't have ciphered
you mustn't have ciphered
he mustn't have ciphered
we mustn't have ciphered
you mustn't have ciphered
they mustn't have ciphered	I mustn't have been ciphering
you mustn't have been ciphering
he mustn't have been ciphering
we mustn't have been ciphering
you mustn't have been ciphering
they mustn't 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 	
mustn't I cipher?
mustn't you cipher?
mustn't he cipher?
mustn't we cipher?
mustn't you cipher?
mustn't they cipher? 	mustn't I be ciphering?
mustn't you be ciphering?
mustn't he be ciphering?
mustn't we be ciphering?
mustn't you be ciphering?
mustn't they be ciphering? 	mustn't I have ciphered?
mustn't you have ciphered?
mustn't he have ciphered?
mustn't we have ciphered?
mustn't you have ciphered?
mustn't they have ciphered? 	mustn't I have been ciphering?
mustn't you have been ciphering?
mustn't he have been ciphering?
mustn't we have been ciphering?
mustn't you have been ciphering?
mustn't they have been ciphering?