English verb conjugation COULD DECIPHER

Regular verb: decipher - deciphered - deciphered

Affirmation

Simple form

I could decipher
you could decipher
he could decipher
we could decipher
you could decipher
they could decipher

V-ing form

I could be deciphering
you could be deciphering
he could be deciphering
we could be deciphering
you could be deciphering
they could be deciphering

Perfect

I could have deciphered
you could have deciphered
he could have deciphered
we could have deciphered
you could have deciphered
they could have deciphered

V-ing perfect

I could have been deciphering
you could have been deciphering
he could have been deciphering
we could have been deciphering
you could have been deciphering
they could have been deciphering

Negation

Simple form

I could not decipher
you could not decipher
he could not decipher
we could not decipher
you could not decipher
they could not decipher

V-ing form

I could not be deciphering
you could not be deciphering
he could not be deciphering
we could not be deciphering
you could not be deciphering
they could not be deciphering

Perfect

I could not have deciphered
you could not have deciphered
he could not have deciphered
we could not have deciphered
you could not have deciphered
they could not have deciphered

V-ing perfect

I could not have been deciphering
you could not have been deciphering
he could not have been deciphering
we could not have been deciphering
you could not have been deciphering
they could not have been deciphering

Interrogative form

Simple form

could I decipher?
could you decipher?
could he decipher?
could we decipher?
could you decipher?
could they decipher?

V-ing form

could I be deciphering?
could you be deciphering?
could he be deciphering?
could we be deciphering?
could you be deciphering?
could they be deciphering?

Perfect

could I have deciphered?
could you have deciphered?
could he have deciphered?
could we have deciphered?
could you have deciphered?
could they have deciphered?

V-ing perfect

could I have been deciphering?
could you have been deciphering?
could he have been deciphering?
could we have been deciphering?
could you have been deciphering?
could they have been deciphering?

Interro-negative form

Simple form

could I not decipher?
could you not decipher?
could he not decipher?
could we not decipher?
could you not decipher?
could they not decipher?

V-ing form

could I not be deciphering?
could you not be deciphering?
could he not be deciphering?
could we not be deciphering?
could you not be deciphering?
could they not be deciphering?

Perfect

could I not have deciphered?
could you not have deciphered?
could he not have deciphered?
could we not have deciphered?
could you not have deciphered?
could they not have deciphered?

V-ing perfect

could I not have been deciphering?
could you not have been deciphering?
could he not have been deciphering?
could we not have been deciphering?
could you not have been deciphering?
could they not have been deciphering?

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