The document analyzes the errors made by a 19-year old Russian ELL student and compares Russian and English languages. [It summarizes that] the student made errors with capitalization, grammar, and punctuation that were likely due to interference from her native Russian language, which does not use articles or capitalize the first-person pronoun. It also finds that Russian uses different intonation patterns and verb conjugations than English. The document provides instructional implications for teachers to understand students' first languages and use various techniques to help ELLs improve their English skills.