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: Exclamative Wh-question

Informator: M. T.

Utterance: Qui la pòt èsser, a cesta ora?

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