Utterance: Volètz venir beure un còp? 
Translation: Do you want to come have a drink?
[Want(present, 2nd sing.) come drink a hit?]
Situation: You are talking with a friend. Ask him/her if s/he wants to go have a drink with you.
Interpretation of the utterance: Offering yes-no question
Informator: G. B.
Utterance: Volètz venir beure un còp?
Translation: Do you want to come have a drink?
[Want(present, 2nd sing.) come drink a hit?]