TOPIK 1 learners often get confused between -거나 and (이)나 .Both can be used to express “or,” but they are used in different situations and follow different grammar rules. In this post, we’ll clearly compare the two grammar points, give practical examples, and show how they commonly appear in TOPIK.   🔎 Why Is This Important? In TOPIK 1, “or” questions appear frequently.However: -거나  connects verbs (이)나  connects nouns Knowing what comes before the particle makes everything e