Korean Particles — The Complete Guide
Particles are the backbone of Korean grammar. Explore core particle patterns — 은/는, 이/가, 을/를 — and Korean sentences will suddenly make sense.
Why Particles Matter So Much
In English, word order determines meaning. In Korean, particles do that job. "나는 사과를 먹어요" (I eat an apple) means the same even if you rearrange the words — the particles signal the role of each word. Master particles, master the language.
1. Topic Particle — 은/는
Equivalent to English "as for..." or Japanese は. Use 은 after a consonant, 는 after a vowel. Marks the topic or creates contrast.
2. Subject Particle — 이/가
Marks the grammatical subject. Use 이 after a consonant, 가 after a vowel. Used for new information or emphasis — the subtle 은/는 vs 이/가 distinction is a Level 3 topic, but start with: 이/가 = subject.
3. Object Particle — 을/를
Marks the object of an action — what you're doing something to. Use 을 after a consonant, 를 after a vowel.
Other Essential Particles
Putting It All Together
The best way to learn particles is through full sentences, not memorization lists. Level 3 has hands-on particle exercises to build natural intuition.
Next Steps
Choose a Particle by the Role of the Noun
In 서점에서 지도를 사요 (seojeomeseo jidoreul sayo, I buy a map at the bookshop), 서점 is where buying happens and 지도 is what is bought. 에서 marks the setting; 를 marks the object. Asking these two questions is more useful than choosing a particle from the English word at or in.
Change only the object: 서점에서 책을 사요 (seojeomeseo chaegeul sayo, I buy a book at the bookshop). 책 ends in a consonant, so the object particle changes from 를 to 을. The location particle stays the same because the setting has not changed.
Topic and Subject Depend on the Conversation
은/는 introduces a topic or a contrast; 이/가 marks a subject and can focus new or identifying information. These are useful starting points, not a direct equivalent of English a and the. Context can make more than one sentence grammatical with a different emphasis.
When someone asks 누가 지도를 샀어요? (nuga jidoreul sasseoyo, Who bought the map?), 제가 샀어요 (jega sasseoyo, I bought it) identifies the buyer. 저는 지도만 샀어요 (jeoneun jidoman sasseoyo, As for me, I bought only a map) instead makes the speaker a topic and can contrast their purchase with someone else’s.
Do Not Confuse the 이 in 이에요 with Subject 이/가
In 학생이에요 (haksaengieyo, I am a student), the ending is a form of 이다, meaning to be. The 이 here is not the subject particle 이/가 attaching to itself. Compare 제가 학생이에요 (jega haksaengieyo, I am the student): 가 marks the subject and 이에요 forms the predicate.
Negation uses a different pattern: 학생이 아니에요 (haksaengi anieyo, I am not a student). Learn noun + 이/가 아니에요 as its own pattern. Similar-looking syllables can do different grammatical jobs, so compare full sentences.
Location, Destination, Starting Point, and Recipient
에 can mark a destination or existence: 서점에 가요 (seojeome gayo, I go to the bookshop), 서점에 있어요 (seojeome isseoyo, I am at the bookshop). 에서 can mark the place of an activity: 서점에서 읽어요 (seojeomeseo ilgeoyo, I read at the bookshop). It can also mark a starting point, as in 서울에서 와요 (seoureseo wayo, I come from Seoul).
A recipient who is a person commonly takes 에게 or 한테: 친구에게 지도를 줘요 (chinguege jidoreul jwoyo, I give a map to a friend). Do not translate every Japanese に or English to as 에. Check whether the noun is a destination, a recipient, or an object selected by the verb.
Practice by Changing One Detail at a Time
Say a complete sentence, then change one role: where the action happens, what is bought, or who receives it. Keep the other roles fixed and explain each particle aloud. This separates the meaning of the particle from the shape change after a consonant or vowel.
In Lesson 3-1, check the answer and read the feedback before continuing. For a missed question, decide whether the mistake was the noun’s role or the 을/를 form. Then review the missed questions as a separate round.
Practice Particles for Real
Level 3 has interactive exercises that help you internalize particles through real sentence practice.