I'm filling out the N-400 application and am a bit confused about my legal name. On my passport, birth certificate, and social security card, my first name is in my native language. However, on my green card, my first name is in English. I also file my taxes with the English translation of my first name. On the document checklist it says that if your legal name differs from the one on the green card, to provide documentation that legally changed your name. The card was issued to me as a child, and always had the English translation on it, but there was never a formal request to change it from my native language to English. What should I do? Thanks.