[{"role": "user", "content": "I'm trying to write a short story that takes place in Italy and one of the characters says 'I had lost my pen.' Can you please help me translate that sentence into Italian so it sounds authentic?"}, {"role": "assistant", "content": "The translation of 'I had lost my pen' in Italian is 'Avevo perso la mia biro.' This should sound authentic in your short story. Note that 'biro' is the Italian word for 'pen', and 'Avevo perso' is the correct conjugation of 'to lose' in the past perfect tense."}]