no sabías

you didn't know

→ no
phrase Uncommon #23,889
you didn't know Informal second-person singular form; in some regions, the corresponding pronoun is vos rather than tú.
SP: No sabías que era tan tarde.
EN: You didn't know it was so late.

Creía que no sabías cómo hacerlo.

I thought you didn’t know how to do it.

¿No dijiste que no sabías si lo podías criar?

Didn't you say you didn't know if you could raise him?

— El gran diluvio (2025)

Pensé que no sabías hacerlo.

I thought you didn't know how to do it.

— La vida de los otros (2006)

No sabía que no sabías conducir.

I didn't know you didn't know how to drive.

¿En serio no sabías eso?

You really didn’t know that?

Creía que no sabías cómo me llamaba.

I thought you didn't know my name.

— Realmente amor (2003)

Ese día en Edgecombe no estabas bien, no sabías lo que hacías.

You weren't well that day in Edgecombe, you didn't know what you were doing.

— Rebeca (1940)

¿No que no sabías?

I thought you said you didn't know.

— Noche de fuego (2021)

No sabías que yo estaría en el hotel.

You didn't know I would be at the hotel.

— El conformista (1971)

Ah, ¿vos no sabías quién era Pedro?

Oh, you didn’t know who Pedro was?

— La historia oficial (1985)

Pensé que no sabías cómo hacerlo.

I thought you didn’t know how to do it.

Pensaba que no sabías cómo hacerlo.

I thought you didn't know how to do it.

No sabías.

You didn't know.

— Los chicos del coro (2004)

Pensé que no sabías eso.

I thought you didn't know that.

Solo porque no sabías al respecto no significa que no sucedió.

Just because you didn’t know about it doesn’t mean it didn’t happen.

Tengo una novia nueva, ¿no sabías?

I have a new girlfriend, didn't you know?