Grammar

Korean Verb Conjugation Made Simple: A Beginner's Guide

9 min read·

Why Korean Verbs Are Easier Than You Think

If you've studied European languages, Korean verbs might seem intimidating at first. But here's the good news: Korean verbs don't change based on the subject. Whether "I," "you," or "they" does something, the verb stays the same. There's no "I go, you go, he goes" — it's always the same conjugated form. This alone makes Korean verbs far simpler than many other languages.

Korean verbs always come at the end of a sentence, and every verb in the dictionary ends in 다 (da). To use a verb in conversation, you remove 다 to get the verb stem, then add the appropriate ending. Let's break this down step by step.

Step 1: Find the Verb Stem

Every Korean verb has a dictionary form ending in 다. Remove 다 and you have the verb stem. This is the foundation of all conjugation.

Dictionary FormMeaningVerb Stem
가다 (ga-da)to go가 (ga)
먹다 (meok-da)to eat먹 (meok)
마시다 (ma-si-da)to drink마시 (ma-si)
하다 (ha-da)to do하 (ha)
보다 (bo-da)to see보 (bo)
읽다 (ik-da)to read읽 (ik)
살다 (sal-da)to live살 (sal)
배우다 (bae-u-da)to learn배우 (bae-u)

Step 2: The Polite Present Tense (해요체)

The most useful form for beginners is 해요체 (haeyo-che), the polite informal speech level. You'll use this in most everyday conversations — with friends, colleagues, shopkeepers, and anyone you're not being super formal with. The rule depends on the last vowel of the verb stem.

Rule 1: Stem ends in ㅏ or ㅗ → add 아요

가다 → 가 + 아요 → 가요
ga-da → ga + a-yo → ga-yo
to go → (I) go
💡ㅏ + 아 contracts to just ㅏ
보다 → 보 + 아요 → 봐요
bo-da → bo + a-yo → bwa-yo
to see → (I) see
💡ㅗ + 아 contracts to ㅘ
오다 → 오 + 아요 → 와요
o-da → o + a-yo → wa-yo
to come → (I) come

Rule 2: All other vowels → add 어요

먹다 → 먹 + 어요 → 먹어요
meok-da → meok + eo-yo → meo-geo-yo
to eat → (I) eat
마시다 → 마시 + 어요 → 마셔요
ma-si-da → ma-si + eo-yo → ma-syeo-yo
to drink → (I) drink
💡시 + 어 contracts to 셔
배우다 → 배우 + 어요 → 배워요
bae-u-da → bae-u + eo-yo → bae-wo-yo
to learn → (I) learn
💡우 + 어 contracts to 워

Rule 3: 하다 verbs → 해요

하다 (to do) is special and incredibly common. Hundreds of Korean verbs are formed by adding 하다 to a noun: 공부하다 (to study), 요리하다 (to cook), 운동하다 (to exercise). All of them conjugate the same way: 하 → 해요.

하다 → 해요
ha-da → hae-yo
to do → (I) do
공부하다 → 공부해요
gong-bu-ha-da → gong-bu-hae-yo
to study → (I) study
요리하다 → 요리해요
yo-ri-ha-da → yo-ri-hae-yo
to cook → (I) cook
운동하다 → 운동해요
un-dong-ha-da → un-dong-hae-yo
to exercise → (I) exercise
💡

Quick trick: If the last vowel of the stem is ㅏ or ㅗ, it's "bright" — use 아요. Everything else is "dark" — use 어요. And 하다 always becomes 해요. That covers 99% of present tense.

Making It Negative: 안 and -지 않다

There are two easy ways to make a verb negative. The short form puts 안 before the verb. The long form adds -지 않다 after the verb stem. Both mean the same thing; short form is more conversational.

안 가요
an ga-yo
(I) don't go
💡Short negation: 안 + verb
가지 않아요
ga-ji a-na-yo
(I) don't go
💡Long negation: stem + 지 않다
안 먹어요
an meo-geo-yo
(I) don't eat
공부하지 않아요
gong-bu-ha-ji a-na-yo
(I) don't study
💡For 하다 verbs, long form is common

Formal Polite: -ㅂ니다 / -습니다

For formal situations — presentations, news, speaking to elders you just met, or job interviews — you use the formal polite form (합쇼체). If the stem ends in a vowel, add -ㅂ니다. If it ends in a consonant, add -습니다.

VerbStemFormal Form
가다 (to go)가 (vowel)갑니다 (gam-ni-da)
보다 (to see)보 (vowel)봅니다 (bom-ni-da)
먹다 (to eat)먹 (consonant)먹습니다 (meok-seum-ni-da)
읽다 (to read)읽 (consonant)읽습니다 (ik-seum-ni-da)
하다 (to do)하 (vowel)합니다 (ham-ni-da)

Casual Speech: Dropping 요

With close friends or people younger than you, simply drop 요 from the polite form. 가요 becomes 가, 먹어요 becomes 먹어, 해요 becomes 해. Be careful — using casual speech with someone you should be polite to can be rude.

어디 가? (casual) vs 어디 가요? (polite)
eo-di ga? vs eo-di ga-yo?
Where are you going?
뭐 먹어? (casual) vs 뭐 먹어요? (polite)
mwo meo-geo? vs mwo meo-geo-yo?
What are you eating?

The 10 Most Essential Korean Verbs

Master these 10 verbs first and you'll be able to express a huge range of ideas. They appear in almost every Korean conversation.

Dictionary FormPolite FormMeaning
있다 (it-da)있어요 (i-sseo-yo)to exist / to have
없다 (eop-da)없어요 (eop-seo-yo)to not exist / to not have
가다 (ga-da)가요 (ga-yo)to go
오다 (o-da)와요 (wa-yo)to come
하다 (ha-da)해요 (hae-yo)to do
먹다 (meok-da)먹어요 (meo-geo-yo)to eat
마시다 (ma-si-da)마셔요 (ma-syeo-yo)to drink
보다 (bo-da)봐요 (bwa-yo)to see / to watch
알다 (al-da)알아요 (a-ra-yo)to know
모르다 (mo-reu-da)몰라요 (mol-la-yo)to not know
💡

있다/없다 (to exist/not exist) are the most versatile verbs in Korean. "커피 있어요?" can mean "Do you have coffee?" or "Is there coffee?" depending on context. Master these two and you unlock a huge range of expressions.

Irregular Verbs: The Tricky Ones

Most Korean verbs follow the rules above perfectly. But a few common verbs have stem changes when conjugated. Don't try to memorize all irregular types — just get used to these high-frequency ones and the patterns will click naturally.

TypeDictionary FormExpectedActualWhy
ㅂ irregular덥다 (hot)덥어요더워요ㅂ → 우 before vowel
ㅂ irregular춥다 (cold)춥어요추워요ㅂ → 우 before vowel
ㄷ irregular듣다 (listen)듣어요들어요ㄷ → ㄹ before vowel
ㄷ irregular걷다 (walk)걷어요걸어요ㄷ → ㄹ before vowel
르 irregular모르다 (not know)모르어요몰라요르 → ㄹ라/ㄹ러
르 irregular빠르다 (fast)빠르어요빨라요르 → ㄹ라/ㄹ러

Asking Questions

In polite speech (해요체), questions and statements use the exact same verb form — only the intonation changes. Raise your pitch at the end and it becomes a question. In formal speech (-ㅂ니다), questions change the ending to -ㅂ니까/-습니까.

커피 마셔요. (↓ falling)
keo-pi ma-syeo-yo
I drink coffee. (statement)
커피 마셔요? (↑ rising)
keo-pi ma-syeo-yo?
Do you drink coffee? (question)
한국어 공부합니까?
han-gu-geo gong-bu-ham-ni-kka?
Do you study Korean? (formal question)

Practice: Conjugate These Verbs

Try conjugating these verbs into polite present tense (해요체) before checking the answers below. Remember: check the last vowel of the stem to decide between 아요 and 어요.

Dictionary FormMeaningYour AnswerCorrect Answer
읽다to read___읽어요
만나다to meet___만나요
쓰다to write___써요
좋아하다to like___좋아해요
살다to live___살아요
주다to give___줘요

Next Steps

Now that you understand the basics of Korean verb conjugation, you're ready to learn about tenses (past, present, future) and start building longer sentences. The key is practice — try conjugating every new verb you learn into 해요체 form until it becomes automatic. Korean verb conjugation has very consistent rules, and once you internalize the vowel harmony pattern, it becomes second nature.

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