Situation: You would love for some friends of yours to come over for dinner. Though they have already told you that they can't come, pleadingly ask them why they are not coming.
Interpretacion
de l’enonciat: Offering Wh-question
Informator:
R. D.
Utterance: Perqué venguètz pas n... dinnar ambe nosaus?
Translation: Why aren't you coming with us for lunch?
[Why come(present, 2nd plur.) not er... have-lunch with we?]