unfortunately, no
Lamentablemente, no hemos recibido tu respuesta.
Unfortunately, we haven't received your response.
Lamentablemente, no comparto tu opinión.
Unfortunately, I don't share your opinion.
Lamentablemente, no es posible.
Unfortunately, it's not possible.
Lamentablemente, no conocemos el resto de su obra.
Unfortunately, we don't know the rest of their work.
El nuestro, lamentablemente, no dirá tal cosa.
Unfortunately, ours will not say such a thing.
— El espejo (1975)