Grammatical function of words depend on postpositions
Postpositions
- 가/이 come after nouns, pronouns, and numerals to make the subject form.
- 을/를 come after nouns, pronouns, and numerals to make the object form
- 에 comes after directions or destinations
- 에서 comes after locations
- 로/으로 comes after tools or other means
***under contruction