were supposed to, had to, you were supposed to, you should have
Te dije que debías ser más cuidadoso.
I told you that you should be more careful.
— Guardianes de la noche (2004)
No debías haber venido tan pronto.
You shouldn't have come so soon.
Alfred, ¿no crees que debías quitarte la insignia?
Alfred, don't you think you should take off the badge?
— El tambor de hojalata (1979)
Hace tiempo que debías de estar en la cama.
You should have been in bed a long time ago.
You did what you had to do.
Tú también debías haber pensado.
You must have thought that too.
— Moscú no cree en las lágrimas (1980)
Dijiste algo que no debías, Cornelius.
You said something you shouldn't have, Cornelius.
— El jardín de los pecadores: Paradigma paradoja (Paradoja espiral) (2008)
Has acabado haciendo algo que no debías.
You've ended up doing something you shouldn't have.
— Carandiru (2003)