Utterance: Mès es plan auèi que vengues dinnar? 
Translation: But, you'll come over for lunch TODAY, won't you?
[But be(present, 3rd sing.) well today that come(present, 2nd sing.) have-lunch?]
Situation: Joan has said that he will be back for lunch. Ask him for confirmation.
Interpretation of the utterance: Confirmatory yes-no question
Informator: F. B.
Utterance: Mès es plan auèi que vengues dinnar?
Translation: But, you'll come over for lunch TODAY, won't you?
[But be(present, 3rd sing.) well today that come(present, 2nd sing.) have-lunch?]