Leonardo is a 19-year-old English language learner from Chile who was interviewed about his English acquisition experience. The summary analyzes his speaking skills based on the interview. It finds that Leonardo has significant grammar deficiencies, using incorrect tenses and word order. He also struggles with pronunciation, omitting final sounds. This is likely due to receiving English instruction only in Spanish. To improve, the summary proposes Leonardo practice grammar structures and pronunciation through computer programs and recording himself to identify mistakes.