[{"role": "user", "content": "I need to express regret to someone in Italian, can you help me translate 'I warned you'?"}, {"role": "assistant", "content": "The translation for 'I warned you' in Italian is 'Io vi avevo avvisati.' You can use this to express regret, but keep in mind that it's a more formal way of saying it, using the formal 'you'. If you're speaking to someone you're familiar with, you might want to use 'Ti avevo avvisato' instead."}]