could encipher
Verbo regular: encipher - enciphered- enciphered

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could encipher
you could encipher
he could encipher
we could encipher
you could encipher
they could encipher 	I could be enciphering
you could be enciphering
he could be enciphering
we could be enciphering
you could be enciphering
they could be enciphering	I could have enciphered
you could have enciphered
he could have enciphered
we could have enciphered
you could have enciphered
they could have enciphered	I could have been enciphering
you could have been enciphering
he could have been enciphering
we could have been enciphering
you could have been enciphering
they could have been enciphering	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not encipher
you could not encipher
he could not encipher
we could not encipher
you could not encipher
they could not encipher 	I could not be enciphering
you could not be enciphering
he could not be enciphering
we could not be enciphering
you could not be enciphering
they could not be enciphering	I could not have enciphered
you could not have enciphered
he could not have enciphered
we could not have enciphered
you could not have enciphered
they could not have enciphered	I could not have been enciphering
you could not have been enciphering
he could not have been enciphering
we could not have been enciphering
you could not have been enciphering
they could not have been enciphering	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I encipher?
could you encipher?
could he encipher?
could we encipher?
could you encipher?
could they encipher? 	could I be enciphering?
could you be enciphering?
could he be enciphering?
could we be enciphering?
could you be enciphering?
could they be enciphering? 	could I have enciphered?
could you have enciphered?
could he have enciphered?
could we have enciphered?
could you have enciphered?
could they have enciphered? 	could I have been enciphering?
could you have been enciphering?
could he have been enciphering?
could we have been enciphering?
could you have been enciphering?
could they have been enciphering? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not encipher?
could you not encipher?
could he not encipher?
could we not encipher?
could you not encipher?
could they not encipher? 	could I not be enciphering?
could you not be enciphering?
could he not be enciphering?
could we not be enciphering?
could you not be enciphering?
could they not be enciphering? 	could I not have enciphered?
could you not have enciphered?
could he not have enciphered?
could we not have enciphered?
could you not have enciphered?
could they not have enciphered? 	could I not have been enciphering?
could you not have been enciphering?
could he not have been enciphering?
could we not have been enciphering?
could you not have been enciphering?
could they not have been enciphering?