doesn't know anything
Ella no sabe nada sobre su familia.
She knows nothing about her family.
Tom no sabe nada sobre cocina.
Tom doesn't know anything about cooking.
El Conde no sabe nada sobre nuestro nuevo barco.
The Count knows nothing about our new ship.
No sabe nada sobre historia rusa del siglo XX.
He knows nothing about 20th century Russian history.
— El arca rusa (2002)
No ha hecho nada, no sabe nada.
He hasn't done anything, he knows nothing.
— La vida de los otros (2006)
El Alcalde no sabe nada, ¿de acuerdo?
The Mayor doesn't know anything, okay?
— Haz lo que debas (1989)
Tom no sabe nada acerca del pasado de Mary.
Tom knows nothing about Mary's past.
Si no sabe nada es su problema.
If he doesn't know anything, that's his problem.
— Reservoir Dogs (1992)