English tutor Alice here! When you're having a face to face conversation with someone you don't want to make them do all the work to try to 'figure out what you're trying to say.' You want a clear, flowing, natural conversation with someone. You want to learn what to say and how to say it. And chances are if you're talking with a friend or family member or coworker they aren't going to directly tell you that they didn't understand you completely. You most likely have never been told exactly what you say wrong or right. Most students have no idea. I could also help you learn phrasal verbs (most students know and use some but they don't know or use many of them). Prepositions (many students forget to use these or don't use the right one. Vocabulary. Idioms. proverbs. slang. You can improve your American English speaking.