English verb conjugation COULD DECIPHER

Regular verb: decipher - deciphered - deciphered

Affirmation

Simple form

I could decipher
you could decipher
she could decipher
we could decipher
you could decipher
they could decipher

V-ing form

I could be deciphering
you could be deciphering
she could be deciphering
we could be deciphering
you could be deciphering
they could be deciphering

Perfect

I could have deciphered
you could have deciphered
she 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
she could have been deciphering
we could have been deciphering
you could have been deciphering
they could have been deciphering

Negation

Simple form

I couldn't decipher
you couldn't decipher
she couldn't decipher
we couldn't decipher
you couldn't decipher
they couldn't decipher

V-ing form

I couldn't be deciphering
you couldn't be deciphering
she couldn't be deciphering
we couldn't be deciphering
you couldn't be deciphering
they couldn't be deciphering

Perfect

I couldn't have deciphered
you couldn't have deciphered
she couldn't have deciphered
we couldn't have deciphered
you couldn't have deciphered
they couldn't have deciphered

V-ing perfect

I couldn't have been deciphering
you couldn't have been deciphering
she couldn't have been deciphering
we couldn't have been deciphering
you couldn't have been deciphering
they couldn't have been deciphering

Interrogative form

Simple form

could I decipher?
could you decipher?
could she decipher?
could we decipher?
could you decipher?
could they decipher?

V-ing form

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

Perfect

could I have deciphered?
could you have deciphered?
could she 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 she have been deciphering?
could we have been deciphering?
could you have been deciphering?
could they have been deciphering?

Interro-negative form

Simple form

couldn't I decipher?
couldn't you decipher?
couldn't she decipher?
couldn't we decipher?
couldn't you decipher?
couldn't they decipher?

V-ing form

couldn't I be deciphering?
couldn't you be deciphering?
couldn't she be deciphering?
couldn't we be deciphering?
couldn't you be deciphering?
couldn't they be deciphering?

Perfect

couldn't I have deciphered?
couldn't you have deciphered?
couldn't she have deciphered?
couldn't we have deciphered?
couldn't you have deciphered?
couldn't they have deciphered?

V-ing perfect

couldn't I have been deciphering?
couldn't you have been deciphering?
couldn't she have been deciphering?
couldn't we have been deciphering?
couldn't you have been deciphering?
couldn't they have been deciphering?

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