debe saber

must know

→ deber
phrase Uncommon #19,032
must know Depending on context, it can also mean “should know.” The subject is understood from context.
SP: Debe saber la respuesta.
EN: He must know the answer.

Debe saber que su padre murió.

You should know that your father died.

— Equipo Demolición (2026)

Truman debe saber qué es lo siguiente.

Truman must know what comes next.

— Oppenheimer (2023)

Debe saber algo.

You must know something.

Pero debe saber algo.

But he must know something.

— Los Visitantes (1993)

Nobuko debe saber.

Nobuko must know.

— El recuerdo de Marnie (2014)

Debe saber que tiene cáncer.

You need to know that you have cancer.

Debe saber dónde se está escondiendo.

He must know where he is hiding.

— Ne le dis à personne (2006)

Hay algo que Ud. debe saber.

There is something you should know.

Pero debe saber que la tarifa está en un nivel diferente al mío.

But you should know that the rate is at a different level than mine.

— La única opción (2025)

El novato debe saber cuál es su sitio.

The newbie needs to know his place.

— Замри-умри-воскресни! (1990)

Pero hay dos cosas que debe saber.

But there are two things you should know.

— Proyecto: El Internado (2026)

Una mujer no debe saber coser.

A woman shouldn't know how to sew.

— El Paciente Inglés (1996)

Nati debe saber.

Nati must know.

— El hijo de la novia (2001)

Debe saber que podrías sacarle los ojos, si quisieras.

You should know that you could gouge out his eyes, if you wanted to.

— “Cumbres Borrascosas” (2026)

Alguien debe saber algo.

Someone must know something.

No dice nada, pero debe saber algo.

He doesn't say anything, but he must know something.

Pero debe saber algo importante.

But you should know something important.

— Los renglones torcidos de Dios (2022)

Ella no debe saber que estoy aquí.

She mustn't know that I'm here.

El niño debe saber.

The child needs to know.

— Los 400 golpes (1959)

Hay algo que debe saber.

There is something you should know.

Eres el único que debe saber.

You're the only one who needs to know.

— El Auto De La Compadecida (2000)