is supposed to
¿Cómo se supone que yo sepa esto?
How am I supposed to know this?
It is assumed.
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.
Con quien se supone tendrías una reunión aquí.
Who are you supposed to have a meeting with here?
— 虐殺器官 (2017)