to argue with someone, particularly over the ownership of something, facts, etc.
논란을 벌이다, 다투다
to complain quietly or softly, often in a way that others cannot hear or understand
중얼대다, 불평하다
to spread bad and awful commentaries about someone in order to damage their reputation
비방하다, 중상모략하다
to criticize or speak unfavorably about someone or something, often in an unfair or unkind way.
욕하다, 비방하다
to tell a person that one admires something about them such as achievements, appearance, etc.
칭찬하다, 찬사를 보내다
to support or defend something that is believed to be right so it continues to last
지지하다, 옹호하다
to criticize someone for their actions or behavior, often implying a need for correction
꾸짖다, 비난하다
to strongly and sincerely state that a particular statement or belief is true
확인하다, 단언하다
to confirm or prove the the accuracy, authencity, or effectiveness of something
유효성을 검사하다, 확인하다