Particles are the little tags after Korean nouns that mark each word’s job. The big four: 은/는 = topic (“as for X…”), 이/가 = subject with focus on who/what, 을/를 = object, 에 = destination/time vs 에서 = where the action happens. The pairs differ only by sound: use 은/이/을 after consonants, 는/가/를 after vowels.
English tells you a word’s job by position: “the dog bit the man” and “the man bit the dog” differ only in order. Korean does the same job with particles — tiny tags glued after nouns — which is why Korean word order feels so free. Master eight particles and Korean sentences snap from word-soup into structure. Let’s do the two that torment every learner first.
은/는 vs 이/가: the mental model that works
Forget “topic vs subject” as an abstract rule. Use this instead:
The spotlight rule
- 은/는 puts the spotlight on what comes after — the noun is old news, the comment is the point. 저는 학생이에요: “As for me — a student.”
- 이/가 puts the spotlight on the noun itself — it answers who? or what? 제가 했어요: “I did it (not someone else).”
Test it: “Who ate the cake?” → 동생이 먹었어요 (spotlight on who). “What did your brother do?” → 동생은 케이크를 먹었어요 (brother is old news; spotlight on what he did). Same facts, different question, different particle.
Two reliable sub-rules: introducing yourself uses 는 (저는 마크예요); new characters entering a story use 가 (옛날에 왕이 살았어요 — “once there lived a king”), then switch to 은/는 once they’re established. And 은/는 often adds contrast: 커피는 좋아해요 implies “coffee I like (tea, not so much).”
을/를 — the object marker
Marks what the verb acts on. 커피를 마셔요 (I drink coffee), 밥을 먹어요 (I eat rice). Nothing subtle here — this one is pure bookkeeping, and it’s the first particle Koreans drop in casual speech.
에 vs 에서 — the location pair
| Particle | Job | Example |
|---|---|---|
| 에 | destination (“to”) | 학교에 가요 — I go to school |
| 에 | static location (with 있다/없다) | 집에 있어요 — I’m at home |
| 에 | time | 세 시에 만나요 — meet at 3 |
| 에서 | where an action happens | 학교에서 공부해요 — I study at school |
| 에서 | starting point (“from”) | 서울에서 왔어요 — I came from Seoul |
The trap: “at school” translates two ways. Just being there is 에; doing something there is 에서. Ask “is there an action verb?” and the choice makes itself.
The supporting cast
| Particle | Meaning | Example |
|---|---|---|
| 도 | also, too (replaces 은/는/이/가) | 저도 가요 — I’m going too |
| 만 | only | 물만 마셔요 — I only drink water |
| (으)로 | direction / by means of | 버스로 가요 — I go by bus |
| 의 | possessive (’s) | 친구의 책 — my friend’s book |
| 하고 / (이)랑 / 와/과 | and, with | 친구하고 영화를 봤어요 — watched a movie with a friend |
| 부터 ~ 까지 | from ~ until | 9시부터 6시까지 — from 9 to 6 |
The three “and” words differ by register: 하고 is neutral spoken, (이)랑 is casual, 와/과 is written/formal. Pick 하고 as your default and you’ll never sound wrong.
How to actually learn particles
Not from charts — from sentences. Particles are habits, not facts: your brain needs hundreds of correct examples before 이/가 starts sounding right. Read and listen daily, notice the particle every time, and drill full example sentences (not isolated rules) with spaced repetition. When you speak, don’t stall hunting for the perfect particle — Koreans drop them constantly in casual speech (밥 먹었어?), and communication beats perfection while the habit forms.
Learn particles inside real sentences
Hanguljo teaches every particle as part of its TOPIK 1–6 grammar lessons, each grounded in example sentences with native audio — then its 7-stage SRS and conversation shadowing turn the rules into reflexes.
Learn Korean with Hanguljo — FreeFrequently asked questions
Why are there two forms of each particle?
Pure pronunciation: 은/이/을 follow consonant-ending nouns (밥은), 는/가/를 follow vowel-ending nouns (커피는). Once you read Hangul, your mouth picks the right one automatically.
Is 이/가 ever used with “to be”?
Yes — negation and existence require it: 학생이 아니에요 (not a student), 시간이 없어요 (there’s no time). These are set patterns worth memorizing whole.
How many particles does Korean have?
Dozens exist, but the eight in this guide cover the overwhelming majority of everyday sentences and everything on TOPIK I. Advanced ones (조차, 마저, 이나마…) can wait until TOPIK 3–4.
Do particles exist in Japanese too?
Yes — Korean 은/는, 이/가, 을/를 map closely to Japanese は, が, を. If you’ve studied Japanese, your particle instincts transfer almost one-to-one (our sister app Kanjijo covers the Japanese side).