I could encipher you could encipher he could encipher we could encipher you could encipher they could encipher
Forma con V-ing
I could be enciphering you could be enciphering he could be enciphering we could be enciphering you could be enciphering they could be enciphering
Perfecto
I could have enciphered you could have enciphered he could have enciphered we could have enciphered you could have enciphered they could have enciphered
Perfecto con V-ing
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
Negación
Forma simple
I could not encipher you could not encipher he could not encipher we could not encipher you could not encipher they could not encipher
Forma con V-ing
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
Perfecto
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
Perfecto con V-ing
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
could I encipher? could you encipher? could he encipher? could we encipher? could you encipher? could they encipher?
Forma con V-ing
could I be enciphering? could you be enciphering? could he be enciphering? could we be enciphering? could you be enciphering? could they be enciphering?
Perfecto
could I have enciphered? could you have enciphered? could he have enciphered? could we have enciphered? could you have enciphered? could they have enciphered?
Perfecto con V-ing
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-negativa
Forma simple
could I not encipher? could you not encipher? could he not encipher? could we not encipher? could you not encipher? could they not encipher?
Forma con V-ing
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?
Perfecto
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?
Perfecto con V-ing
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?