Korean particles are the glue that holds sentences together. They're tiny markers attached to the end of words that tell you who's doing what in a sentence — and they're the single biggest difference between Korean and English grammar.
If you've been studying Korean and still feel confused about when to use 은/는 vs. 이/가, or whether you need 에 or 에서, this guide will clear everything up.
What Are Korean Particles?
Particles (조사, josa) are short syllables attached to the end of nouns, pronouns, and other words to indicate their grammatical function. Think of them as invisible prepositions and case markers rolled into one.
In English, word position tells us meaning:
- "The dog chased the cat" ≠ "The cat chased the dog"
In Korean, particles tell us meaning, so word order is flexible:
- 개가 고양이를 쫓았어요. (The dog chased the cat.)
- 고양이를 개가 쫓았어요. (Same meaning! Particles make it clear.)
The Big Three: Topic, Subject, and Object Particles
은/는 — Topic Particle
Use 은 after consonants, 는 after vowels.
The topic particle marks what the sentence is about. It sets the stage, introduces the topic, or contrasts with something else.
When to use 은/는:
1. Introducing yourself or a topic:
- 저는 학생이에요. (As for me, I'm a student.)
- 이것은 뭐예요? (As for this, what is it?)
2. Making general statements:
- 한국어는 재미있어요. (Korean is fun.) — general fact about Korean
- 커피는 비싸요. (Coffee is expensive.) — speaking about coffee in general
3. Contrasting:
- 사과는 좋아하지만 바나나는 싫어해요. (I like apples but I don't like bananas.)
- 오늘은 안 가요. (Today, [specifically, unlike other days,] I'm not going.)
이/가 — Subject Particle
Use 이 after consonants, 가 after vowels.
The subject particle marks the grammatical subject — who or what performs the action. It emphasizes new information or identifies a specific subject.
When to use 이/가:
1. Answering "who" or "what" questions:
- 누가 왔어요? → 친구가 왔어요. (Who came? → My friend came.)
- 뭐가 필요해요? → 시간이 필요해요. (What do you need? → I need time.)
2. Describing new events or observations:
- 비가 와요! (It's raining!) — noticing something new
- 꽃이 예뻐요. (The flowers are pretty.) — observing for the first time
3. With existence/non-existence (있다/없다):
- 시간이 없어요. (I don't have time.)
- 질문이 있어요. (I have a question.)
The 은/는 vs. 이/가 Cheat Sheet
| Situation | Use | Example |
|---|---|---|
| Introducing a topic | 은/는 | 저는 미국 사람이에요. |
| General statement | 은/는 | 한국 음식은 맛있어요. |
| Contrast | 은/는 | 이것은 좋지만 저것은 나빠요. |
| New information | 이/가 | 친구가 왔어요. |
| Answering who/what | 이/가 | 저가 했어요. |
| With 있다/없다 | 이/가 | 돈이 없어요. |
Beginner tip: When in doubt, use 은/는 for general statements and 이/가 when pointing out something specific or new.
을/를 — Object Particle
Use 을 after consonants, 를 after vowels.
Marks the direct object — the thing being acted upon.
- 저는 커피를 마셔요. (I drink coffee.)
- 음악을 들어요. (I listen to music.)
- 한국어를 공부해요. (I study Korean.)
In casual speech, 을/를 is often dropped:
- 밥 먹었어? (Did you eat?) — 을 dropped from 밥을
Location and Direction Particles
에 — Location, Time, Direction
The most versatile particle. Context determines its meaning:
Static location (existence):
- 집에 있어요. (I'm at home.)
- 서울에 살아요. (I live in Seoul.)
Direction/destination:
- 학교에 가요. (I go to school.)
- 한국에 가고 싶어요. (I want to go to Korea.)
Time:
- 7시에 일어나요. (I wake up at 7.)
- 월요일에 만나요. (Let's meet on Monday.)
에서 — Location of Action, From
Where an action takes place:
- 도서관에서 공부해요. (I study at the library.)
- 식당에서 밥을 먹어요. (I eat at a restaurant.)
Starting point (from):
- 미국에서 왔어요. (I came from America.)
- 여기에서 거기까지 멀어요. (It's far from here to there.)
에 vs. 에서: The Key Difference
- 에 = being somewhere (static) or going somewhere (direction)
- 에서 = doing something somewhere (action at a location)
Compare:
- 학교에 있어요. (I am at school.) — just existing there
- 학교에서 공부해요. (I study at school.) — doing something there
Connection and Relationship Particles
와/과, 하고, (이)랑 — "And" / "With"
All mean "and" or "with" between nouns:
- 과 (after consonant) / 와 (after vowel) — formal/written
- 사과와 바나나 (apples and bananas)
- 하고 — standard spoken
- 친구하고 같이 가요. (I go with a friend.)
- (이)랑 — casual spoken
- 엄마랑 쇼핑했어요. (I went shopping with mom.)
의 — Possessive ("'s" / "of")
- 나의 가방 → 내 가방 (my bag) — 나의 contracts to 내
- 한국의 문화 (Korea's culture / the culture of Korea)
In casual speech, 의 is often dropped:
- 엄마 가방 (Mom's bag) — understood without 의
도 — "Also" / "Too"
Replaces 은/는, 이/가, or 을/를:
- 저도 학생이에요. (I'm also a student.)
- 이것도 맛있어요. (This is also delicious.)
- 한국어도 공부해요. (I study Korean too.)
만 — "Only"
- 커피만 마셔요. (I only drink coffee.)
- 조금만 기다려요. (Wait just a little.)
부터 / 까지 — "From" / "Until"
- 9시부터 6시까지 일해요. (I work from 9 to 6.)
- 서울부터 부산까지 (from Seoul to Busan)
Common Particle Mistakes to Avoid
1. Using 에서 for static existence:
- 집에서 있어요 ❌ → 집에 있어요 ✓ (I'm at home.)
2. Using 은/는 when 이/가 is needed:
- 누가 했어요? 저는 했어요 ❌ → 저가 했어요 ✓
3. Doubling particles:
- 학교에에서 ❌ → 학교에서 ✓
4. Using 에 for action locations:
- 도서관에 공부해요 ❌ → 도서관에서 공부해요 ✓
How to Actually Master Particles
Particles are hard to learn from rules alone because the "right" choice often depends on context, emphasis, and nuance. The most effective way to internalize them is through listening to natural Korean — your brain picks up the patterns far faster than conscious memorization allows.
Langmitra's Korean for English Speakers course immerses you in real Korean conversations through podcast-style lessons with AI pronunciation coaching. You hear particles used correctly in hundreds of natural sentences — ordering food, introducing yourself, talking about your day — and the correct usage starts to feel instinctive.
For an overview of how particles fit into the bigger picture, see our Korean sentence structure guide and our complete Korean proficiency roadmap.