Grammar, vocabulary & TOPIK
Mr. Gaon
Gaon · Age 37
A calm teacher who has led grammar and TOPIK classes at a university language institute. She likes to put similar-looking expressions side by side and compare them.
- How we teach
- Logical but warm, with comparisons and summaries
- Favorites
- Chalk, charts neatly drawn in colored pens, and a student's "Ah, now I get it!"






Mr. Gaon's lesson (38)
- Introducing Yourself: N이에요/예요 · TOPIK I · Levels 1–2
- This, That, That Over There: 이/그/저 · TOPIK I · Levels 1–2
- Topic and Subject Particles: 은/는 and 이/가 · TOPIK I · Levels 1–2
- The Object Particle 을/를 and 하다 Verbs · TOPIK I · Levels 1–2
- The Polite Present Tense: -아요/어요 · TOPIK I · Levels 1–2
- Native Korean Numbers and Counters · TOPIK I · Levels 1–2
- Sino-Korean Numbers: Money, Dates and Phone Numbers · TOPIK I · Levels 1–2
- Telling Time, Days and Dates · TOPIK I · Levels 1–2
- There Is / There Isn’t: 있어요, 없어요 and Locations · TOPIK I · Levels 1–2
- Going Places and Doing Things There: 에 and 에서 · TOPIK I · Levels 1–2
- The Past Tense: -았어요/었어요 · TOPIK I · Levels 1–2
- The Future: -(으)ㄹ 거예요 · TOPIK I · Levels 1–2
- Saying No: 안, 못 and -지 않아요 · TOPIK I · Levels 1–2
- I Want to…: -고 싶어요 · TOPIK I · Levels 1–2
- Polite Requests: -(으)세요 and -아/어 주세요 · TOPIK I · Levels 1–2
- And, But, So: 그리고, 그런데, -고, -지만 · TOPIK I · Levels 1–2
- Family Members and How Koreans Address Them · TOPIK I · Levels 1–2
- Can and Can’t: -(으)ㄹ 수 있어요/없어요 · TOPIK I · Levels 1–2
- TOPIK I: What It Is and How to Prepare · TOPIK I · Levels 1–2
- Giving Reasons: -아서/어서 vs -(으)니까 · TOPIK II · Levels 3–4
- Setting the Scene: -는데/-(으)ㄴ데 · TOPIK II · Levels 3–4
- If and When: -(으)면 · TOPIK II · Levels 3–4
- Describing Nouns: -는, -(으)ㄴ, -(으)ㄹ · TOPIK II · Levels 3–4
- Have You Ever…?: -아/어 본 적이 있어요 · TOPIK II · Levels 3–4
- Actions in Progress and States: -고 있어요, -아/어 있어요 · TOPIK II · Levels 3–4
- Purpose and Intention: -(으)러 and -(으)려고 · TOPIK II · Levels 3–4
- Must, May and Must Not: -아/어야 해요, -아/어도 돼요, -(으)면 안 돼요 · TOPIK II · Levels 3–4
- Guessing and Seeming: -(으)ㄹ 것 같아요, -나 봐요 · TOPIK II · Levels 3–4
- Reported Speech: -다고 했어요 · TOPIK II · Levels 3–4
- Passive Verbs: -이/히/리/기- · TOPIK II · Levels 3–4
- Making Someone Do Something: Causative Verbs · TOPIK II · Levels 3–4
- Before, After, While, As Soon As · TOPIK II · Levels 3–4
- TOPIK II: Reading and Writing Strategies · TOPIK II · Levels 3–4
- Understanding Korean News · TOPIK II · Levels 5–6
- Presentations and Formal Speeches · TOPIK II · Levels 5–6
- Subtle Endings: -거든요, -잖아요, -더라고요, -네요 · TOPIK II · Levels 5–6
- Academic and Essay Writing · TOPIK II · Levels 5–6
- Korean at Work · Real-life Korean
The four teachers are fictional characters created to help you learn, and their pictures were made with AI (Higgsfield).