Korean Grammar: 'ㄷ' Irregular Verbs (ㄷ 불규칙) Irregular Verbs Explained | Soona Study Lab

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The Shape-Shifters: Korean 'ㄷ' Irregular Verbs (ㄷ 불규칙)

Are you looking for the best Korean learning materials to master grammar? Welcome to Soona Study Lab's Grammar Masterclass! Today, we are tackling another frequently used yet confusing grammar point for Korean learners:

The 'ㄷ' Irregular Verbs (ㄷ 불규칙 동사).

Korean 'ㄷ' irregular verbs include some of the most essential daily actions like Listening (듣다), Walking (걷다), and Asking (묻다).

Here is the tricky part: when these verb stems ending in 'ㄷ' meet a grammar pattern that starts with a vowel like '-아/어요' or '-(으)면', they completely change their shape! The 'ㄷ' magically transforms into 'ㄹ' (like 걷다 -> 걸어요).

Don't worry! Because these words are related to daily activities, you will use them all the time. Once you understand this simple rule, you will sound much more natural. We'll also cover the "fake irregulars" (the regular exceptions like 받다 and 닫다) that you must memorize.

Click the play buttons in the interactive module below to listen to the native pronunciation and practice reading out loud! (The full text and discussion questions are provided at the bottom of the page.)

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Mastering Korean Irregulars

Memorizing the rule of the 'ㄷ' irregular verb is just the first step. To truly speak Korean with confidence, you need to practice saying words like "들어요" and "걸었어요" out loud until they become muscle memory. Stop calculating the grammar in your head and start speaking!

If you found this grammar breakdown helpful and want to practice building complex sentences in real-time, join my 1:1 conversation classes. Let's conquer your Korean goals together!

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Full Grammar Breakdown, Conjugation Tables & Discussion (Free Study Materials)

'ㄷ' Irregular Verbs (ㄷ 불규칙) Irregular Verbs Explained

The Rule: ㄷ changes to ㄹ

If a verb stem ends with the final consonant 'ㄷ', and the following grammar pattern starts with a vowel (like -아/어요 or -(으)면), the 'ㄷ' changes into 'ㄹ'.

[Dictionary Form -> Meaning -> Conjugation]

듣다 -> To listen / hear -> 드 + ㄹ + 어요 = 들어요

걷다 -> To walk -> 거 + ㄹ + 어요 = 걸어요

묻다 -> To ask -> 무 + ㄹ + 어요 = 물어요

싣다 -> To load -> 시 + ㄹ + 어요 = 실어요

깨닫다 -> To realize -> 깨다 + ㄹ + 아요 = 깨달아요

10 Sentences Practice (Present & Past Tense)

음악을 매일 들어요. (듣다 - Present)

[Eu-ma-geul mae-il deu-reo-yo.]

I listen to music every day.

어제 공원을 한 시간 걸었어요. (걷다 - Past)

[Eo-je gong-wo-neul han si-gan geo-reo-sseo-yo.]

I walked in the park for an hour yesterday.

모르는 것이 있으면 선생님에게 물어보세요. (묻다 - Present)

[Mo-reu-neun geo-si i-sseu-myeon seon-saeng-ni-me-ge mu-reo-bo-se-yo.]

If there's something you don't know, please ask the teacher.

차에 짐을 많이 실었어요. (싣다 - Past)

[Cha-e ji-meul ma-ni si-reo-sseo-yo.]

I loaded a lot of luggage into the car.

그 사실을 너무 늦게 깨달았어요. (깨닫다 - Past)

[Geu sa-si-reul neo-mu neut-gge kkae-da-ra-sseo-yo.]

I realized that fact too late.

케이팝 노래를 자주 들어요. (듣다 - Present)

[Kei-pap no-rae-reul ja-ju deu-reo-yo.]

I listen to K-pop songs often.

출근할 때 지하철역까지 걸어요. (걷다 - Present)

[Chul-geun-hal ttae ji-ha-cheol-yeok-kka-ji geo-reo-yo.]

I walk to the subway station when going to work.

길을 잃어서 경찰에게 길을 물었어요. (묻다 - Past)

[Gi-reul i-reo-seo gyeong-cha-re-ge gi-reul mu-reo-sseo-yo.]

I got lost, so I asked the police for directions.

트럭에 물건을 매일 실어요. (싣다 - Present)

[Teu-reo-ge mul-geo-neul mae-il si-reo-yo.]

I load goods onto the truck every day.

제 실수를 깨닫고 바로 사과했어요. (깨닫다 - Past)

[Je sil-su-reul kkae-dat-kko ba-ro sa-gwa-hae-sseo-yo.]

I realized my mistake and apologized immediately.

Regular Exceptions (Do not change to ㄹ)

[Dictionary Form -> Meaning -> Conjugation]

받다 -> To receive -> 받 + 아요 = 받아요

닫다 -> To close -> 닫 + 아요 = 닫아요

믿다 -> To believe -> 믿 + 어요 = 믿어요

얻다 -> To get/obtain -> 얻 + 어요 = 얻어요

묻다 -> To bury/stain (Different from ask) -> 묻 + 어요 = 묻어요

생일에 선물을 많이 받았어요.

[Saeng-i-re seon-mu-reul ma-ni ba-da-sseo-yo.]

I received a lot of presents on my birthday.

비가 와서 창문을 닫았어요.

[Bi-ga wa-seo chang-mu-neul da-da-sseo-yo.]

It was raining, so I closed the window.

저는 그 친구의 말을 믿어요.

[Jeo-neun geu chin-gu-e ma-reul mi-deo-yo.]

I believe that friend's words.

열심히 노력해서 좋은 결과를 얻었어요.

[Yeol-sim-hi no-ryeo-kae-seo jo-eun gyeol-gwa-reul eo-deo-sseo-yo.]

I worked hard and obtained a good result.

옷에 커피가 조금 묻었어요.

[O-se keo-pi-ga jo-geum mu-deo-sseo-yo.]

A little bit of coffee stained my clothes.

Free Talking & Discussion Questions

평소에 어떤 음악을 즐겨 들어요?

[Pyeong-so-e eo-tteon eu-ma-geul jeul-gyeo deu-reo-yo?]

What kind of music do you usually enjoy listening to?

하루에 보통 몇 분 정도 걸어요?

[Ha-ru-e bo-tong myeot bun jeong-do geo-reo-yo?]

How many minutes do you usually walk a day?

모르는 길을 갈 때 사람들에게 자주 물어보는 편인가요?

[Mo-reu-neun gi-reul gal ttae sa-ram-deu-re-ge ja-ju mu-reo-bo-neun pyeo-nin-ga-yo?]

Do you often ask people for directions when you go on an unknown road?

산책할 때 팟캐스트나 음악을 듣는 것을 좋아해요?

[San-chae-kal ttae pat-kae-seu-teu-na eu-ma-geul deun-neun geo-seul jo-a-hae-yo?]

Do you like listening to podcasts or music when taking a walk?

최근에 새롭게 깨달은 사실이 있나요?

[Choe-geu-ne sae-rop-gge kkae-da-reun sa-si-ri in-na-yo?]

Is there any fact you newly realized recently?

한국어를 배울 때 선생님에게 질문을 많이 묻는 편인가요?

[Han-gu-geo-reul bae-ul ttae seon-saeng-ni-me-ge jil-mu-neul ma-ni mun-neun pyeo-nin-ga-yo?]

Do you tend to ask the teacher a lot of questions when learning Korean?

에어컨이나 히터를 켤 때 문을 항상 잘 닫아요?

[E-eo-keo-ni-na hi-teo-reul kyeol ttae mu-neul hang-sang jal da-da-yo?]

Do you always close the door well when turning on the AC or heater?

생일에 어떤 선물을 가장 받고 싶어요?

[Saeng-i-re eo-tteon seon-mu-reul ga-jang bat-kko si-peo-yo?]

What kind of gift do you most want to receive on your birthday?

여러분은 처음 만난 사람의 말을 잘 믿는 편인가요?

[Yeo-reo-bu-neun cheo-eum man-nan sa-ra-me ma-reul jal min-neun pyeo-nin-ga-yo?]

Do you tend to believe the words of someone you met for the first time well?

걷기 운동이 건강에 좋다는 것을 언제 깨달았어요?

[Geot-kki un-dong-i geon-gang-e jo-ta-neun geo-seul eon-je kkae-da-ra-sseo-yo?]

When did you realize that walking exercise is good for your health?