Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I could decipher decode you could decipher decode he could decipher decode we could decipher decode you could decipher decode they could decipher decode
V-ing form
I could be decipher decoding you could be decipher decoding he could be decipher decoding we could be decipher decoding you could be decipher decoding they could be decipher decoding
Perfect
I could have decipher decoded you could have decipher decoded he could have decipher decoded we could have decipher decoded you could have decipher decoded they could have decipher decoded
V-ing perfect
I could have been decipher decoding you could have been decipher decoding he could have been decipher decoding we could have been decipher decoding you could have been decipher decoding they could have been decipher decoding
Negation
Simple form
I could not decipher decode you could not decipher decode he could not decipher decode we could not decipher decode you could not decipher decode they could not decipher decode
V-ing form
I could not be decipher decoding you could not be decipher decoding he could not be decipher decoding we could not be decipher decoding you could not be decipher decoding they could not be decipher decoding
Perfect
I could not have decipher decoded you could not have decipher decoded he could not have decipher decoded we could not have decipher decoded you could not have decipher decoded they could not have decipher decoded
V-ing perfect
I could not have been decipher decoding you could not have been decipher decoding he could not have been decipher decoding we could not have been decipher decoding you could not have been decipher decoding they could not have been decipher decoding
Interrogative form
Simple form
could I decipher decode? could you decipher decode? could he decipher decode? could we decipher decode? could you decipher decode? could they decipher decode?
V-ing form
could I be decipher decoding? could you be decipher decoding? could he be decipher decoding? could we be decipher decoding? could you be decipher decoding? could they be decipher decoding?
Perfect
could I have decipher decoded? could you have decipher decoded? could he have decipher decoded? could we have decipher decoded? could you have decipher decoded? could they have decipher decoded?
V-ing perfect
could I have been decipher decoding? could you have been decipher decoding? could he have been decipher decoding? could we have been decipher decoding? could you have been decipher decoding? could they have been decipher decoding?
Interro-negative form
Simple form
could I not decipher decode? could you not decipher decode? could he not decipher decode? could we not decipher decode? could you not decipher decode? could they not decipher decode?
V-ing form
could I not be decipher decoding? could you not be decipher decoding? could he not be decipher decoding? could we not be decipher decoding? could you not be decipher decoding? could they not be decipher decoding?
Perfect
could I not have decipher decoded? could you not have decipher decoded? could he not have decipher decoded? could we not have decipher decoded? could you not have decipher decoded? could they not have decipher decoded?
V-ing perfect
could I not have been decipher decoding? could you not have been decipher decoding? could he not have been decipher decoding? could we not have been decipher decoding? could you not have been decipher decoding? could they not have been decipher decoding?