Situation: At two o'clock in the morning, you are asleep in your bed, and you hear someone knocking at the door. Ask yourself who the hell it could be at that early hour.

Interpretation of the utterance: Dubitative Wh-question

Informator: T. B. B.

Utterance: Qui pòt èster, ad aguesta ora?

Translation: Who can it be at this time?
[Who can(present, 3rd sing.) be, at this hour?]