I don't know, but
I don't know, but it's ours.
No sé, pero están revisando los libros.
I don't know, but they're checking the books.
No sé, pero sonaba maravillosa.
I don't know, but it sounded wonderful.
— Una cuestión de tiempo (2013)
No sé, pero no creo que haya salido de viaje.
I don't know, but I don't think he's gone on a trip.
— Burning (2018)
No sé, pero esto es interesante.
I don't know, but this is interesting.
I don't know, but someone did.