se supone

is supposed to

→ se
phrase Very common #2,061
is supposed to Usually followed by que and a verb. It can express an expectation, obligation, or what is assumed to be true.
SP: Se supone que llega a las ocho.
EN: He’s supposed to arrive at eight.

¿Cómo se supone que yo sepa esto?

How am I supposed to know this?

Se supone.

It is assumed.

No se supone que estés aquí.

You're not supposed to be here.

Un actor nunca debería abandonar un papel que se supone debe ser interpretado.

An actor should never abandon a role that is meant to be played.

Se supone?

Is it supposed to?

— Anaconda (2025)

Con quien se supone tendrías una reunión aquí.

Who are you supposed to have a meeting with here?

— 虐殺器官 (2017)