Korean Word Order: Subject-Object-Verb
The most fundamental difference between Korean and English sentence structure is word order. English follows SVO (Subject-Verb-Object): "I eat rice." Korean follows SOV (Subject-Object-Verb): "I rice eat." The verb always comes at the end of the sentence in Korean — this is a rule that cannot be broken.
저는 밥을 먹습니다.
jeo-neun bab-eul meokseumnida.
I eat rice. (Literally: I rice eat.)
언니가 책을 읽어요.
eonni-ga chaeg-eul ilgeoyo.
My older sister reads a book. (Literally: Older sister book reads.)
When you are constructing a Korean sentence, always think verb last. Everything else — subject, object, time, place — comes before the verb. If you remember nothing else about Korean grammar, remember this: the verb goes at the end.
Particles: The Markers That Build Sentences
Korean uses small words called particles (조사 / josa) that attach to the end of nouns to show their grammatical role. Particles tell you who is doing something, what is being acted upon, and where or when something happens. Understanding the three core particles is essential for building any sentence.
Topic Marker: 은/는 (eun/neun)
The topic marker indicates what the sentence is about — the topic being discussed. Use 은 after a noun ending in a consonant and 는 after a noun ending in a vowel.
저는 학생이에요.
jeo-neun haksaeng-ieyo.
I am a student. (As for me, I am a student.)
오늘은 날씨가 좋아요.
oneul-eun nalssi-ga joayo.
Today, the weather is nice. (As for today, the weather is nice.)
Subject Marker: 이/가 (i/ga)
The subject marker identifies the grammatical subject of the sentence, often highlighting new information or answering "who" or "what." Use 이 after a consonant and 가 after a vowel.
비가 와요.
bi-ga wayo.
It is raining. (Rain comes.)
누가 왔어요?
nu-ga wasseoyo?
Who came?
Object Marker: 을/를 (eul/reul)
The object marker identifies the direct object — the thing being acted upon. Use 을 after a consonant and 를 after a vowel.
커피를 마셔요.
keopi-reul masyeoyo.
I drink coffee.
한국어를 공부합니다.
hangugeo-reul gongbu-hamnida.
I study Korean.
The Basic Sentence Pattern
The standard Korean sentence follows this template:
[Topic]은/는 + [Object]을/를 + [Verb]
저는 음악을 들어요.
jeo-neun eumag-eul deureoyo.
I listen to music.
아버지는 신문을 읽으세요.
abeoji-neun sinmun-eul ilgeuseyo.
My father reads the newspaper.
While Korean word order is more flexible than English — you can rearrange the subject, object, time, and place — the verb must always remain at the very end of the sentence. Moving the verb to any other position makes the sentence ungrammatical.
The Copula: 이다 (ida) — "To Be"
The verb 이다 means "to be" and attaches directly to a noun. It works differently from other verbs because it combines with the noun it describes.
저는 학생이에요.
jeo-neun haksaeng-ieyo.
I am a student.
여기가 서울역이에요.
yeogi-ga seoul-yeog-ieyo.
This is Seoul Station.
In formal speech, 이다 becomes 입니다 (imnida):
저는 회사원입니다.
jeo-neun hoesawon-imnida.
I am an office worker.
이것은 제 가방입니다.
igeot-eun je gabang-imnida.
This is my bag.
Polite Verb Endings
Korean verbs must be conjugated to show the level of politeness. The two most important levels for beginners are:
Formal Polite: -ㅂ니다 / -습니다
Used in formal situations — business, news broadcasts, presentations, and when speaking to someone much older.
- After a vowel stem: add -ㅂ니다 (가다 → 갑니다)
- After a consonant stem: add -습니다 (먹다 → 먹습니다)
저는 매일 운동합니다.
jeo-neun maeil undong-hamnida.
I exercise every day.
감사합니다.
gamsahamnida.
Thank you.
Polite Casual: -아요 / -어요
Used in everyday polite conversation — shops, restaurants, acquaintances, and most daily interactions.
- After a stem with ㅏ or ㅗ: add -아요 (가다 → 가요)
- After all other stems: add -어요 (먹다 → 먹어요)
- 하다 verbs: -해요 (공부하다 → 공부해요)
어디에 가요?
eodi-e gayo?
Where are you going?
저는 한국 음식을 좋아해요.
jeo-neun hanguk eumsig-eul joahaeyo.
I like Korean food.
As a beginner, the -ㅂ니다/습니다 ending is the safest choice. It is always polite, never offensive, and grammatically simpler to form. Once you are comfortable, transition to -아요/어요 for everyday conversations.
Subject Dropping
Like Japanese, Korean freely drops the subject when it is obvious from context. In conversation, constantly repeating 저는 (I) or 너는 (you) sounds unnatural.
오늘 뭐 했어요?
oneul mwo haesseoyo?
What did (you) do today?
친구 만났어요.
chingu mannasseoyo.
(I) met a friend.
Neither sentence uses an explicit subject, yet the meaning is perfectly clear from context.
Adding Time and Place
Time and place expressions come before the object, typically near the beginning of the sentence after the topic. The general order is:
[Topic]은/는 + [Time] + [Place]에서 + [Object]을/를 + [Verb]
저는 오늘 학교에서 한국어를 공부해요.
jeo-neun oneul hakgyo-eseo hangugeo-reul gongbu-haeyo.
I study Korean at school today.
우리는 내일 식당에서 점심을 먹어요.
uri-neun naeil sikdang-eseo jeomsim-eul meogeoyo.
We eat lunch at a restaurant tomorrow.
Quick Reference Table
| Pattern | Structure | Example |
|---|---|---|
| Basic statement | [Topic]은/는 [Object]을/를 [Verb] | 저는 밥을 먹어요. |
| "To be" (noun) | [Topic]은/는 [Noun]이에요/예요 | 저는 학생이에요. |
| Formal statement | [Topic]은/는 [Object]을/를 [Verb]-ㅂ니다 | 저는 밥을 먹습니다. |
| With time | [Topic]은/는 [Time] [Verb] | 저는 매일 운동해요. |
| With place | [Topic]은/는 [Place]에서 [Verb] | 저는 집에서 공부해요. |
| With time + place | [Topic]은/는 [Time] [Place]에서 [Verb] | 저는 오늘 카페에서 공부해요. |
Summary
Korean sentence structure is built on a few core principles that differ significantly from English. The key takeaways:
- SOV word order — the verb always goes at the end, everything else comes before it
- Particles mark roles — 은/는 for topic, 이/가 for subject, 을/를 for object
- Consonant/vowel variants — most particles have two forms depending on the final sound of the noun
- Verb endings show politeness — -ㅂ니다/습니다 for formal, -아요/어요 for polite casual
- Subjects are often dropped — when context makes the meaning clear, omit the subject for natural-sounding Korean
- Time and place come early — they appear before the object, between the topic and the verb
