你是我一生最爱的人，用英文可以表达为：

1. You are the love of my life

2. You are my greatest love of my life

3. You are the very one I like most in my life

4. You are the human who in my life most loves

5. You are my only love in my life

这些表达都准确地传达了“你是我一生最爱的人”的意思，可以根据具体情境选择合适的表达方式。