english: There's the kind of grammar that lives inside your brain, and if you're a native  speaker of a language or a good speaker of a language, it's the unconscious rules that you follow when you speak that language.
non_english: Postoji gramatika koja živi u vašem umu i ako ste izvorni govornik jezika ili dobar govornik jezika, to su nesvesna pravila koja sledite kada govorite taj jezik.