(subjective first-person singular pronoun) used by the speaker to refer to themselves when they are the subject of the sentence
나
(second-person pronoun) used for referring to the one or the people we are writing or talking to
너
(subjective third-person singular pronoun) used when referring to a male human or animal that was already mentioned or one that is easy to identify
그
(subjective third-person singular pronoun) used when referring to a female human or animal that was already mentioned or one that is easy to identify
그녀
(subjective third-person singular pronoun) used when referring to something or an animal as the subject of a sentence
그것
(subjective first-person plural pronoun) used by a speaker when they want to talk or write about themselves and at least one other person
우리
(subjective third-person plural pronoun) used when referring to the things or people that were already mentioned
그들