Irregular ㄷ Verbs (Sound Smoother)
Grammar Rule in 30 Seconds
When a verb stem ends in ㄷ and meets a vowel, the ㄷ changes to ㄹ to make the sound smoother.
- If the stem ends in ㄷ, change it to ㄹ before a vowel-starting ending (e.g., 듣다 -> 들어요).
- This rule applies to verbs like 듣다 (listen), 걷다 (walk), and 묻다 (ask).
- If the ending starts with a consonant, the ㄷ stays the same (e.g., 듣고, 듣지).
Overview
Korean language features several irregular verb and adjective transformations that are crucial for natural pronunciation and comprehension. Among these, the ㄷ irregular verb rule, known as ㄷ 불규칙 동사 (d-bulgyuchik dongsa), is a fundamental concept for A2 level learners. This irregularity occurs in specific verbs where the final consonant ㄷ (d) of the verb stem changes to ㄹ (l or r) when immediately followed by a vowel-initial grammatical ending.
This phonetic alteration is not arbitrary; it serves to facilitate smoother pronunciation, as the hard stop sound of ㄷ often creates an unnatural pause or obstruction when transitioning directly into a vowel sound. The liquid, flowing nature of ㄹ allows for a more fluid and less effortful articulation, aligning with the Korean tendency towards euphonic sound changes. While many verbs ending in ㄷ remain regular, a significant and frequently used subset undergoes this transformation, including verbs like 듣다 (deutta, to listen), 걷다 (geotda, to walk), and 묻다 (mutta, to ask).
Mastering this irregularity is essential for sounding more native and avoiding common pronunciation pitfalls.
Conjugation Table
| Verb Meaning | Dictionary Form | Stem | Polite Present (-아요/어요) |
Formal Present (-습니다) |
Past Tense (-았/었어요) |
Connective (-(으)면) |
Future Modifier (-(으)ㄹ) |
||
|---|---|---|---|---|---|---|---|---|---|
| :--------------- | :---------------- | :------- | :--------------------------- | :--------------------------- | :--------------------------- | :-------------------------- | :---------------------------- | ||
| To Listen | 듣다 (deutta) |
듣 (deut) |
들어요 (deureoyo) |
듣습니다 (deutseumnida) |
들었어요 (deureosseoyo) |
들으면 (deureumyeon) |
들을 (deureul) |
||
| To Walk | 걷다 (geotda) |
걷 (geot) |
걸어요 (georeoyo) |
걷습니다 (geotseumnida) |
걸었어요 (georeosseoyo) |
걸으면 (georeumyeon) |
걸을 (georeul) |
||
| To Ask | 묻다 (mutta) |
묻 (mut) |
물어요 (mureoyo) |
묻습니다 (mutseumnida) |
물었어요 (mureosseoyo) |
물으면 (mureumyeon) |
물을 (mureul) |
||
| To Load/Carry | 싣다 (silda) |
싣 (sil) |
실어요 (sireoyo) |
싣습니다 (sitseumnida) |
실었어요 (sireosseoyo) |
실으면 (sireumyeon) |
실을 (sireul) |
||
| To Realize | 깨닫다 (kkaedatda) |
깨닫 (kkaedat) |
깨달아요 (kkaedarayo) |
깨닫습니다 (kkaedatseumnida) |
깨달았어요 (kkaedarasseoyo) |
깨달으면 (kkaedareumyeon) |
깨달을 (kkaedareul) |
||
| (Regular) To Receive | 받다 (batda) |
받 (bat) |
받아요 (badayo) |
받습니다 (batseumnida) |
받았어요 (badaseoyo) |
받으면 (badmyeon) |
받을 (badeul) |
||
| (Regular) To Close | 닫다 (datda) |
닫 (dat) |
닫아요 (dadayo) |
닫습니다 (datseumnida) |
닫았어요 (dadaseoyo) |
닫으면 (dadmyeon) |
닫을 (dadeul) |
||
| (Regular) To Believe | 믿다 (mitda) |
믿 (mit) |
믿어요 (mideoyo) |
믿습니다 (mitseumnida) |
믿었어요 (mideosseoyo) |
믿으면 (mideumyeon) |
믿을 (mideul) |
How This Grammar Works
ㄷ irregular rule is a phonetic assimilation process. When a verb stem ending in ㄷ is immediately followed by a grammatical ending that begins with a vowel, the ㄷ sound transforms into ㄹ. This change reflects the Korean language's preference for smooth transitions between syllables, particularly from an obstruent (stop consonant like ㄷ) to a sonorant (vowel or liquid consonant like ㄹ).ㄷ sound is an alveolar stop, requiring a momentary cessation of airflow, whereas ㄹ is an alveolar flap or lateral approximant, allowing continuous airflow. The transformation from a "stop" sound to a "liquid" sound creates a more melodious and less abrupt flow in spoken Korean.ㄷ retains its original sound and form within the stem. For instance, when 듣다 (to listen) combines with -습니다 (a formal ending starting with the consonant ㅅ), it becomes 듣습니다, with no change to the ㄷ.-고 (-go, and), 걷다 becomes 걷고 (geotgo, walk and). This distinction is vital: vowel-initial endings trigger the change, consonant-initial endings do not. The rule can be summarized as: ㄷ + vowel-initial ending → ㄹ + vowel-initial ending. ㄷ + consonant-initial ending → ㄷ + consonant-initial ending.Formation Pattern
ㄷ irregular verbs, illustrating both the irregular and regular behaviors with various endings.
ㄷ + Vowel-Initial Ending (Irregular Change)
걷다 (geotda, to walk).
다 from 걷다 to get 걷. The stem ends in ㄷ.
-아요/어요.
걷 (ㅓ) is dark, we select -어요.
걷 ends in ㄷ. The chosen ending -어요 begins with a vowel (ㅇ acts as a placeholder for the initial vowel sound).
ㄷ in 걷 transforms into ㄹ. The stem effectively becomes 걸.
걸 + 어요 = 걸어요 (georeoyo).
듣다 (deutta, to listen) and the past tense ending -았/었어요:
듣.
ㅡ is dark, so we select -었어요.
듣 (ends in ㄷ) + 었어요 (starts with ㅇ). The ㄷ changes to ㄹ. The stem becomes 들.
들 + 었어요 = 들었어요 (deureosseoyo).
ㄷ + Consonant-Initial Ending (No Change)
ㄷ remains unchanged. Using 걷다 (geotda, to walk) with the connective ending -고 (and):
걷.
-고 (-go). This ending begins with the consonant ㄱ (g).
ㄷ in 걷 is followed by a consonant (ㄱ). No change occurs.
걷 + 고 = 걷고 (geotgo).
듣다 (deutta, to listen) with the formal declarative ending -습니다 (-seumnida):
듣.
-습니다. This ending begins with the consonant ㅅ (s).
ㄷ in 듣 is followed by a consonant (ㅅ). No change occurs.
듣 + 습니다 = 듣습니다 (deutseumnida).
ㄷ-final stem.
When To Use It
ㄷ irregular verbs with high frequency in daily Korean conversation, reading, and listening. Their mastery is not optional but fundamental for effective communication. The irregularity applies universally across all tenses (present, past, future) and moods (declarative, interrogative, imperative, propositive) as long as the grammatical ending itself starts with a vowel.ㄷ irregular verbs and their typical usages:듣다(deutta, to listen/hear): This is perhaps the most common. Whether you're listening to music, a lecture, or someone talking, you'll use this verb.저는 음악을 들어요.(Jeoneun eumageul deureoyo.- I listen to music.)선생님 말씀을 잘 들으세요.(Seonsaengnim malsseumeul jal deureuseyo.- Please listen carefully to what the teacher says.)뉴스에서 흥미로운 이야기를 들었어요.(Nyuseueseo heungmirowun iyagireul deureosseoyo.- I heard an interesting story on the news.)
걷다(geotda, to walk): Essential for discussing movement, commuting, or taking a stroll.매일 아침 공원을 걸어요.(Maeil achim gongwoneul georeoyo.- I walk in the park every morning.)천천히 걸읍시다.(Cheoncheonhi georeupsida.- Let's walk slowly.)어제 너무 많이 걸어서 다리가 아파요.(Eoje neomu mani georeoseo dariga apayo.- My legs hurt because I walked too much yesterday.)
묻다(mutta, to ask): Crucial for asking questions, inquiring about something, or making requests.모르는 것이 있으면 선생님께 물어보세요.(Moreuneun geosi isseumyeon seonsaengnimkke mureoboseyo.- If there's anything you don't know, please ask the teacher.)길을 물어서 찾아갔어요.(Gireul mureoseo chajagasseoyo.- I asked for directions and found my way.)그는 제게 개인적인 질문을 물었어요.(Geuneun jege gaeinjeogin jilmuneul mureosseoyo.- He asked me a personal question.)
싣다(silda, to load/carry): Used when putting something into a vehicle or carrying a heavy load.트럭에 짐을 실어요.(Teureoge jimeul sireoyo.- I load the luggage onto the truck.)책들을 상자에 실어서 날랐다.(Chaekdeureul sangjae sireoseo nallatda.- I loaded the books into a box and carried them.)
깨닫다(kkaedatda, to realize/perceive): Describes the moment of understanding or an epiphany.그제야 상황을 깨달았어요.(Geujeya sanghwangeul kkaedarasseoyo.- Only then did I realize the situation.)살면서 중요한 가치를 깨닫게 되었어요.(Salmyeonseo jungyohan gachireul kkaedatge doeeosseoyo.- While living, I came to realize important values.)
When Not To Use It
ㄷ irregular rule does not apply. Not every verb or adjective ending in ㄷ undergoes this transformation. Many ㄷ-final words are perfectly regular and maintain their ㄷ sound regardless of the following ending.ㄷ-final verb might be regular is often historical or related to its specific phonetic properties that do not create the same articulatory difficulty as the irregular ones. For learners, the most effective approach is to memorize the common regular ㄷ verbs alongside the irregular ones.ㄷ verbs:받다(batda, to receive): This verb is frequently used and always regular.- Correct:
선물을 받아요.(Seonmureul badayo.- I receive a gift.) - Incorrect:
선물을 바라요.(This forms a different verb,바라다to wish/hope).
닫다(datda, to close): Commonly used for closing doors, windows, or shops.- Correct:
문이 닫혀요.(Muni dachyeoyo.- The door closes.) - Incorrect:
문이 달려요.(This forms a different verb,달리다to run).
믿다(mitda, to believe/trust): Expressing belief or trust.- Correct:
저는 그 사람을 믿어요.(Jeoneun geu sarameul mideoyo.- I believe that person.) - Incorrect:
저는 그 사람을 밀어요.(This forms a different verb,밀다to push).
얻다(eotda, to get/obtain): Used for acquiring something.- Correct:
정보를 얻었어요.(Jeongboreul eodeosseoyo.- I obtained information.) - Incorrect:
정보를 얼었어요.(This forms a different verb,얼다to freeze).
붙다(butda, to stick/adhere, to pass an exam): Has multiple meanings but remains regular.- Correct:
표가 벽에 붙어요.(Pyoga byeoge buteoyo.- The poster sticks to the wall.) - Correct:
시험에 붙었어요!(Siheome buteosseoyo!- I passed the exam!)
돋다(dotda, to sprout/rise (e.g., sun)): Used for natural phenomena.- Correct:
해가 돋아요.(Haega dotayo.- The sun rises.)
ㄷ-ending verb, your first step should be to mentally check if it's one of the common irregular ones. If not, it's highly likely to be regular. Memorizing these regular exceptions is just as important as knowing the irregular forms to avoid misconjugations.Common Mistakes
ㄷ irregular verbs. Recognizing these common errors is the first step toward correcting them and solidifying your understanding.ㄷ are irregular. This leads to incorrectly applying the ㄷㄹ change to regular verbs.- Error: Saying
선물을바라요instead of선물을 받아요(for받다, to receive). The non-existent바라요` in this context means "to wish/hope," creating a completely different, and often nonsensical, sentence. - Error: Conjugating
믿다(to believe) as밀어요(mireoyo). This mistakenly uses the verb밀다(to push), causing significant semantic confusion.
- Failure to apply the irregularity: Conversely, some learners might forget to apply the rule to actual irregular verbs, particularly under pressure or when speaking quickly.
- Error: Saying
음악을듣어요(deuteoyo) instead of음악을 들어요(deureoyo`). While understandable, this sounds awkward and unnatural to native speakers, similar to saying "I runned" in English.
- Confusion with homophones: Korean has several homophonous verbs that sound the same in their dictionary form but have different meanings and conjugation patterns. The most notable example is
묻다. 묻다(to ask - irregular):질문을 물어요.(Jilmuneul mureoyo.- I ask a question.)묻다(to bury/to stain - regular):땅에 씨앗을 묻어요.(Ttange ssiasseul mudeoyo.- I bury seeds in the ground.) or옷에 흙이 묻었어요.(Ose heurki mudeosseoyo.- Dirt got on my clothes / My clothes are stained with dirt.)
묻다 as 물어요 would result in grammatically correct but contextually absurd sentences, like "I asked dirt on my clothes." Always consider the verb's meaning in context before conjugating 묻다.- Incorrect application with consonant-initial endings: Mistakenly changing
ㄷtoㄹeven when the following ending begins with a consonant. - Error: Saying
들습니다instead of듣습니다(for듣다with-습니다). Remember, theㄷis stable before consonants.
Memory Trick
To effectively remember the ㄷ irregular rule and distinguish it from regular ㄷ verbs, consider the following conceptual approach:
- The "Flowing Sound" Concept: Imagine ㄷ as a small, sturdy rock. When this rock (ㄷ) is followed by a flowing stream (a vowel-initial ending), it's gently eroded and transformed into a smoother, more fluid ㄹ (a rolling pebble). However, if the rock (ㄷ) is hit by another solid object (a consonant-initial ending), it remains steadfast and unchanged. This visualization reinforces the phonetic rationale: ㄷ prefers not to clash abruptly with an open vowel.
- The "Big Three" Irregulars: Focus intensely on mastering the conjugations of the most common ㄷ irregular verbs first: 듣다 (to listen), 걷다 (to walk), and 묻다 (to ask). These three alone will cover a vast majority of your daily interactions. Once these are automatic, expanding to 싣다 and 깨닫다 becomes easier.
- The "Stubborn Regulars": For regular ㄷ verbs like 받다 (to receive), 닫다 (to close), and 믿다 (to believe), think of them as "stubborn" or "unyielding." They refuse to change, no matter what comes after them. A simple mnemonic could be: "I 받아요 (receive) a gift, then I 닫아요 (close) the box, because I 믿어요 (believe) in privacy." The actions here are decisive and rigid, reflecting the unchanging ㄷ.
By connecting the abstract grammar rule to a tangible concept or a memorable mini-narrative, you can create stronger cognitive hooks, making recall more efficient and less prone to error.
Real Conversations
Observing how ㄷ irregular verbs are used in natural, everyday Korean conversations illuminates their practical importance and nuances across different registers. These examples demonstrate modern usage beyond textbook sentences.
Scenario 1
해체)- A: 야, 어제 무슨 노래 들었어? 완전 좋던데! (Ya, eoje museun norae deureosseo? Wanjeon jotdeonde! - Hey, what song did you listen to yesterday? It was really good!)
- B: 아, 그거? 밴드 혁오 노래 들었는데, 진짜 최고였어. 너도 들어봐! (A, geugeo? Baendeu Hyukoh norae deureotneunde, jinjja choegoyeosseo. Neodo deureobwa! - Oh, that? I listened to a Hyukoh band song, it was seriously the best. You should listen too!)
Scenario 2
요체)- A: 죄송한데, 이 근처에 지하철역이 어디 있는지 물어봐도 될까요? (Joesonghande, i geuncheoe jihacheollyeogi eodi inneunji mureobwado doelkkayo? - Excuse me, may I ask where the subway station is around here?)
- B: 네, 저쪽으로 쭉 걸어가면 바로 나와요. (Ne, jeojjogeuro jjuk georeogamyeon baro nawayo. - Yes, if you walk straight that way, it'll appear right away.)
Scenario 3
하십시오체)- 시민 여러분의 의견을 듣고자 본 행사를 개최하였습니다. (Simin yeoreobunui uigyeoneul deutgoja bon haengsareul gaechoehayeosseumnida. - We held this event to hear the opinions of our citizens.)
- Here, 듣고자 uses the connective -고자 (in order to), which starts with ㄱ (consonant), so no irregularity.
Scenario 4
- 이제야 깨달았어! 오늘이 내 생일인 걸! (Ijeya kkaedarasseo! Oneuri nae saengirin geol! - I just realized! Today's my birthday!)
These examples showcase the ㄷ irregular verbs integrated seamlessly into natural communication, highlighting their versatility across different social contexts and communication methods.
Contrast With Similar Patterns
ㄷ irregular differs from or relates to others. This contextualization prevents misapplication and deepens your grasp of Korean phonology.ㅂIrregular Verbs (ㅂ 불규칙): This is another common irregularity whereㅂ(b) at the end of a stem changes to우(u) or오(o) when followed by a vowel-initial ending. Examples include돕다(dopda, to help) →도와요(dowayo). While bothㄷandㅂirregulars involve a final consonant changing before a vowel, the resulting sound change is distinct (ㄷtoㄹ,ㅂto a vowel/semivowel). The underlying principle, however, is similar: ease of pronunciation and avoidance of consonant-vowel clashes.
ㅅIrregular Verbs (ㅅ 불규칙): Inㅅirregular verbs, the finalㅅ(s) of the stem drops out completely when followed by a vowel-initial ending. For example,낫다(natda, to get better) →나아요(naayo). Here, a consonant disappears, whereas inㄷirregulars, one consonant transforms into another. Both are driven by phonetic rules but manifest differently.
르Irregular Verbs (르 불규칙): Verbs ending in르undergo a more complex change where르combines with the preceding syllable andㄹis added or doubled, depending on the preceding vowel. Example:모르다(moreuda, not know) →몰라요(mollayo). This is a stem-internal change affecting a vowel and consonant, rather than just a final consonant transformation like theㄷirregular.
- Verbs ending in
ㄹ(ㄹ받침): Do not confuseㄷirregular verbs with verbs whose stems naturally end inㄹ(e.g.,만들다-mandeulda, to make;팔다-palda, to sell). These verbs already haveㄹas their final stem consonant. When conjugating them, they often require different forms for vowel-initial endings than consonant-initial endings (e.g.,만들어요, but만듭니다or만들고). Theㄹis inherent to the stem, not a result of aㄷtransformation. Recognizing these distinctions will help you apply the correct conjugation rules to each verb type.
Progressive Practice
Consistent and varied practice is essential for internalizing the ㄷ irregular rule. Move beyond simple memorization by actively engaging with the language in different formats.
- Conjugation Drills: Systematically conjugate common ㄷ irregular verbs (듣다, 걷다, 묻다, 싣다, 깨닫다) and common regular ㄷ verbs (받다, 닫다, 믿다, 얻다, 붙다) across various endings (e.g., -아요/어요, -았/었어요, -(으)면, -(으)ㄹ 거예요, -습니다, -고). Pay close attention to whether the ending starts with a vowel or a consonant.
- Example:
- 듣다 + -(으)러 (to go/come to do something): 들으러 (correct)
- 받다 + -(으)러: 받으러 (correct)
- Sentence Completion: Fill in the blanks with the correct conjugated form of a ㄷ-ending verb, ensuring the context dictates whether it's irregular or regular.
- 저는 어제 공원에서 친구와 (걷다) __________. (Answer: 걸었어요)
- 궁금한 점이 있으면 선생님께 (묻다) __________ 보세요. (Answer: 물어보세요)
- 매일 아침 우유를 (받다) __________ 마셔요. (Answer: 받아서)
- Listening Practice: Actively listen for ㄷ irregular verbs in K-dramas, podcasts, or songs. Try to identify the dictionary form and how it was conjugated. Pay attention to the subtle phonetic shift from ㄷ to ㄹ.
- Shadowing: Practice repeating dialogues or sentences containing ㄷ irregular verbs after native speakers. This helps develop muscle memory for the correct pronunciation and smooth transitions.
- Flashcards: Create flashcards with the dictionary form on one side and various conjugated forms (polite, past, formal) on the other, for both irregular and regular ㄷ verbs. Include a note about its regularity status.
Quick FAQ
ㄷ irregular verbs:ㄷ-ending verb is irregular or regular?Unfortunately, there's no inherent visual cue in the dictionary form itself. The most effective way is through memorization of the common irregulars (듣다, 걷다, 묻다, 싣다, 깨닫다) and common regulars (받다, 닫다, 믿다, 얻다, 붙다). Context can sometimes help differentiate homophones like 묻다 (to ask) vs. 묻다 (to bury/stain).
ㄷ irregular rule apply to adjectives?Yes, it can, but it is less common with A2 level adjectives. For example, 이르다 (to be early/reach) technically ends in 르 but its root is sometimes linked to older forms, and it demonstrates similar phonetic fluidity. However, for ㄷ-final adjectives, there are very few true irregulars comparable to verbs; most ㄷ-final adjectives are regular.
ㄹ?If a verb stem already ends in ㄹ (e.g., 만들다 - to make, 살다 - to live), it follows a different set of conjugation rules, often called ㄹ irregulars or ㄹ final verbs. Do not confuse these with ㄷ irregulars, as the ㄹ is part of the original stem and not a transformation from ㄷ.
ㄷ verb doesn't change even with a vowel-initial ending?No. If a verb is classified as a ㄷ irregular verb, the ㄷ will always change to ㄹ when followed by any vowel-initial grammatical ending. The rule is consistent once the verb's irregularity is established.
ㄷ irregular verbs in Korean?No, the total number of ㄷ irregular verbs is relatively small. The handful of verbs mentioned (듣다, 걷다, 묻다, 싣다, 깨닫다) constitute the vast majority of those you will encounter regularly. Once you master these, you are well-equipped to handle this particular irregularity.
ㄷ Irregular Conjugation Table
| Verb | Stem | Polite (-어요) | Past (-었어요) | Future (-을 거예요) |
|---|---|---|---|---|
|
듣다
|
듣-
|
들어요
|
들었어요
|
들을 거예요
|
|
걷다
|
걷-
|
걸어요
|
걸었어요
|
걸을 거예요
|
|
묻다
|
묻-
|
물어요
|
물었어요
|
물을 거예요
|
|
싣다
|
싣-
|
실어요
|
실었어요
|
실을 거예요
|
|
깨닫다
|
깨닫-
|
깨달아요
|
깨달았어요
|
깨달을 거예요
|
Meanings
A phonological shift where the consonant 'ㄷ' (d) transforms into 'ㄹ' (r/l) when followed by a vowel-initial suffix.
Vowel-initial conjugation
The standard application of the rule when adding polite or past tense endings.
“음악을 들어요.”
“학교까지 걸었어요.”
Reference Table
| Form | Structure | Example |
|---|---|---|
|
Affirmative
|
Stem(ㄹ) + 어요
|
들어요
|
|
Negative
|
Stem(ㄷ) + 지 않아요
|
듣지 않아요
|
|
Question
|
Stem(ㄹ) + 어요?
|
들어요?
|
|
Past
|
Stem(ㄹ) + 었어요
|
들었어요
|
|
Future
|
Stem(ㄹ) + 을 거예요
|
들을 거예요
|
|
Command
|
Stem(ㄹ) + 으세요
|
들으세요
|
|
Consonant-Ending
|
Stem(ㄷ) + 고
|
듣고
|
Formality Spectrum
음악을 듣습니다. (Daily life)
음악을 들어요. (Daily life)
음악을 들어. (Daily life)
음악 듣네. (Daily life)
ㄷ Irregular Verb Flow
Followed by Vowel
- ㄷ -> ㄹ Change to ㄹ
Followed by Consonant
- ㄷ -> ㄷ No change
Examples by Level
음악을 들어요.
I listen to music.
학교까지 걸어요.
I walk to school.
선생님께 물어봐요.
I ask the teacher.
많이 들었어요.
I listened a lot.
길을 물어볼까요?
Shall we ask for directions?
그 노래를 들을 거예요.
I will listen to that song.
공원을 걸어서 갔어요.
I walked through the park.
질문을 물어보세요.
Please ask a question.
그 소문을 들으면 놀랄 거예요.
You will be surprised if you hear that rumor.
어제 너무 많이 걸어서 다리가 아파요.
My legs hurt because I walked too much yesterday.
모르는 것이 있으면 물어보세요.
If there is something you don't know, ask.
라디오를 들으면서 공부해요.
I study while listening to the radio.
그의 조언을 들었더라면 좋았을 텐데.
It would have been good if I had listened to his advice.
강변을 따라 걸으니 기분이 좋아요.
I feel good walking along the river.
무엇을 물어봐야 할지 모르겠어요.
I don't know what I should ask.
그는 항상 남의 말을 잘 들어요.
He always listens well to others.
그 사실을 들었을 때 믿을 수가 없었어요.
I couldn't believe it when I heard that fact.
산길을 걸어 올라가는 것은 힘들지만 보람 있어요.
Walking up the mountain path is hard but rewarding.
선배에게 물어본 결과, 그게 맞다고 해요.
As a result of asking my senior, they say it's correct.
음악을 들으려던 참이었어요.
I was just about to listen to music.
그의 말을 들음으로써 상황을 이해하게 되었습니다.
By listening to him, I came to understand the situation.
오랫동안 걸어온 길을 되돌아봅니다.
I look back on the path I have walked for a long time.
무엇을 물어보든 친절하게 대답해 줄 거예요.
Whatever you ask, they will answer kindly.
그는 음악을 들을 때 가장 행복해 보입니다.
He looks happiest when he listens to music.
Easily Confused
Learners think all ㄷ verbs are irregular.
Both involve ㄹ, but the mechanism is different.
Both change consonants.
Common Mistakes
닫어요
닫아요
듣고 -> 들고
듣고
믿어요 -> 밀어요
믿어요
얻어요 -> 얼어요
얻어요
걷어요
걸어요
물어요 (as in 'to bite')
물어요 (as in 'to ask')
받아요 -> 발아요
받아요
깨닫어요
깨달아요
실어요
실어요 (Wait, this is correct, but check stem)
묻다 -> 물다
묻다 -> 묻어요 (regular) vs 묻다 -> 물어요 (irregular)
묻다 (to bury) -> 물어요
묻다 (to bury) -> 묻어요
Sentence Patterns
___을/를 들어요.
___까지 걸어요.
___에게 물어보세요.
___을/를 들을 거예요.
Real World Usage
오늘 들은 노래 추천해요!
들었어?
질문을 물어봐도 될까요?
길을 물어볼게요.
배달원에게 물어봤어요.
선생님, 다시 들려주세요.
The 'Ask' vs 'Bury' Trap
Pronunciation Flow
Texting Slang
Smart Tips
Check if it's one of the 'big three': 듣다, 걷다, 묻다.
Look at the first letter. If it's a vowel, be ready to change ㄷ to ㄹ.
Always double-check your irregular verbs.
Focus on the flow. The change makes it easier to say.
Pronunciation
ㄷ to ㄹ
The 'd' sound becomes a soft 'r' or 'l' sound.
Rising
들어요? ↑
Questioning intonation
Memorize It
Mnemonic
Think of the ㄷ as a 'door' that swings open into a 'slide' (ㄹ) when a vowel (the wind) hits it.
Visual Association
Imagine a hard 'D' block turning into a soft, flowing 'L' ribbon when it touches a vowel bubble.
Rhyme
When the vowel comes to play, the ㄷ turns to ㄹ right away!
Story
Dae-ho (ㄷ) was walking (걷다) down the street. He heard (듣다) a sound. He asked (묻다) a friend what it was. Because he was so excited, his 'D's turned into 'L's!
Word Web
Challenge
Write 3 sentences using '듣다', '걷다', and '묻다' in the past tense today.
Cultural Notes
The rule is strictly followed in formal and standard speech.
Dialects may vary, but the irregular conjugation is generally consistent.
Youth often drop particles but keep the irregular conjugation.
The shift is a result of historical sound changes where intervocalic stops weakened into liquids.
Conversation Starters
오늘 음악을 들었어요?
학교까지 걸어갔어요?
선생님께 물어볼 것이 있나요?
그 소문을 들었을 때 어땠어요?
Journal Prompts
Common Mistakes
Test Yourself
음악을 ___.
___ (walk) to school.
Find and fix the mistake:
닫어요 (to close).
묻다 -> ?
All ㄷ verbs are irregular.
A: 질문 있어요? B: 네, ___.
듣다 + -을 거예요
Match each item on the left with its pair on the right:
Score: /8
Practice Exercises
8 exercises음악을 ___.
___ (walk) to school.
Find and fix the mistake:
닫어요 (to close).
묻다 -> ?
All ㄷ verbs are irregular.
A: 질문 있어요? B: 네, ___.
듣다 + -을 거예요
듣다, 걷다, 묻다
Score: /8
Practice Bank
13 exercises이 상자를 ___ (받다) 주세요.
드디어 정답을 ___ (깨닫다).
Select the sentence with correct grammar.
Match the base form to the conjugated form.
음악을 / 들으면서 / 걸어요 / 저는
제 말을 믿어주세요.
Did you hear the news?
짐을 트렁크에 ___ (싣다).
Identify the verb that does NOT change its stem.
길을 ___ (묻다) 보세요.
매일 아침에 걷습니다.
I walked yesterday.
음악을 ___ (듣다) 공부해요.
Score: /13
FAQ (8)
Because they are regular verbs. It's a lexical property.
You have to memorize them. Start with the most common ones.
No, only those starting with a vowel.
It is a regular verb. It does not change.
Yes, it is used in all registers.
Because it doesn't follow the standard conjugation pattern.
Yes, it is standard in all written forms.
There are only a few common ones.
Scaffolded Practice
1
2
3
4
Mastery Progress
Needs Practice
Improving
Strong
Mastered
In Other Languages
Stem-changing verbs (e.g., dormir -> duermo)
Spanish changes are stress-based; Korean is phonological.
Liaison
Liaison is optional/stylistic; Korean conjugation is mandatory.
Strong verbs (e.g., geben -> gibt)
Vowel vs. consonant change.
Godan verb conjugations
Japanese is agglutinative with different rules.
Weak verbs (e.g., roots with w/y)
Arabic is root-based; Korean is stem-based.
None
Chinese is isolating; Korean is agglutinative.
Learning Path
Prerequisites
Learn These First
Related Grammar Rules
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The ㅂ Melting Rule: Hot & Cold Verbs (chupda/chuwoyo)
Overview The Korean `ㅂ` irregular rule, often dubbed the "Hot & Cold Verbs," is a crucial phonological phenomenon that...
Irregular Verbs (ㄷ → ㄹ): Walking, Hearing, Asking
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The 'Eu' Drop Pattern: Why 으 Disappears
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Korean Honorific Infix: Respecting the Subject (-(으)시)
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