This is the 8397th most frequent Catalan word.
deurien
"Deurien" is the conditional form of "deure," meaning "they should" or "they ought to" in English.
The word 'deurien' is used to express an assumption or probability related to the occurrence of an event.
Deurien arribar d'aquí a poc fent servir aquesta ruta.
They should arrive shortly using this route.
In this case, 'deurien' conveys a suggestion or a retrospection about a past action that was advisable.
Deurien haver estudiat més abans de l'examen.
They should have studied more before the exam.
Here, 'deurien' suggests an expectation or belief about someone’s state or feelings.