[{"role": "user", "content": "Hi, I'm looking for ways to express past experiences in Italian. Can you help me translate 'I did this once' into Italian?"}, {"role": "assistant", "content": "Certo! The translation of 'I did this once' in Italian is 'Feci questo una volta.' If you want to use it in a sentence, you can say 'Feci questo una volta, ma non lo rifarei' which means 'I did this once, but I wouldn't do it again.'"}]