When you're beginning to look like the photo in your passport, you should go on a holiday.
- Cuando empieces a parecerte a la foto de tu pasaporte deberías irte de vacaciones.
You should have listened to me.
- Deberías haberme escuchado.
You ought to stop smoking.
- Deberías dejar de fumar.
My friend ought to have arrived here by now.
- Mi amigo ya debería haber llegado.