Thw most important thing when learning a language is to learn how to ask for things and make statements that express your thoughts in a clear and cohesive way. And as well as learning 반말(informal language) to speak with friends. If you're close friends with somebody you don't want to use 존댓말 because using formal language will make them think that you don't see them as a close friend. I also have a question about 안 and 못 what exactly is the difference? I know that 안 is more Like I won't do something(even though I can) and 못 is I can't do something I don't have the ability to do something. What difference Is there besides that? Like when to know to use which one?