nobody knows that
Nobody knows we are here.
Nadie sabe que lo vio, pero lo vieron.
Nobody knows who saw it, but they saw it.
Casi nadie sabe que somos hermanas.
Almost no one knows that we are sisters.
Nadie sabe que he comprado un coche nuevo.
Nobody knows I've bought a new car.
Nobody knows you're here.
Acabas de llegar, nadie sabe que estás investigando aquí.
You just arrived, nobody knows you're doing research here.
— Asuntos infernales (2002)
No one knows that he’s still alive.