[{"role": "user", "content": "I'm trying to improve my Italian skills and I came across the phrase 'I saw what you did' - could you please help me translate it into Italian so I can understand its meaning and usage in context?"}, {"role": "assistant", "content": "The phrase 'I saw what you did' can be translated into Italian as 'Io ho visto cos'hai fatto.' This sentence is used to express that you have witnessed someone's actions, and it can be used in various contexts, such as accusing someone of doing something wrong or simply stating that you have seen what they did."}]