it's a secret
It's not a secret.
Me gustaría saberlo, si no es un secreto.
I'd like to know, if it's not a secret.
— Por un puñado de dólares (1964)
I suppose it's a secret.
Es un secreto que no quería revelar ni siquiera a ti.
It's a secret I didn't want to reveal even to you.
— Cinema Paradiso (1988)