[{"role": "user", "content": "I'm trying to learn Italian to communicate with my friends who are from Italy, and I was wondering how I would express the sentence 'You never showed up' in Italian, could you please help me with the translation?"}, {"role": "assistant", "content": "The translation of 'You never showed up' in Italian is 'Voi non vi siete mai presentati.' This sentence is in the formal form, which is suitable for addressing friends or in a polite situation."}, {"role": "user", "content": "That's really helpful, thank you! What if I want to use the informal form, would the translation be different?"}, {"role": "assistant", "content": "Yes, the informal form of 'You never showed up' in Italian would be 'Tu non ti sei mai presentato' for addressing one friend, or 'Voialtri non vi siete mai presentati' in some regions of Italy for a group of friends, but the most common way to say it informally is 'Voi non vi siete mai presentati' is also used informally in many situations."}]