B2 Reported Speech 9 min read Medium

Hearsay Observation: 'I heard... and now...' (-다더니)

Use -다더니 to comment on a situation based on something you previously heard from another source.
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Grammar Rule in 30 Seconds

Use -다더니 to report something you heard and connect it to a subsequent observation or result.

  • Use -다더니 for hearsay followed by your own observation: 'I heard X, and now I see Y.'
  • Attach to verb/adjective stems: -ㄴ다더니 (present), -았다더니 (past), -겠다더니 (future).
  • The subject of the hearsay clause is usually third-person, while the second clause is your own experience.
Hearsay (다더니) + Observation (결과)

Overview

Korean grammar often provides precise ways to articulate nuanced social observations. The structure -다더니 (romanization: da-deo-ni) is a prime example, serving as a linguistic bridge between something you previously heard and a present reality you are observing. It functions to express the idea of "I heard that X (was the case), and now (I see/realize) Y." This grammatical pattern encapsulates a speaker's reaction or commentary on a situation that either confirms or contradicts prior reported information.

At its core, -다더니 combines two distinct linguistic elements: the reported speech marker -다고 하다 (da-go ha-da), often shortened to -다, and the connective ending -더니 (deo-ni), which indicates a past observation leading to a current situation or result. This fusion allows you to concisely convey that your current perception or realization is directly linked to information acquired through hearsay. It is a powerful tool for expressing surprise, validation, or mild reproof, reflecting a comparison between expectation and reality.

This pattern is fundamental for A1 learners because it introduces them to the concept of reported speech and how it interacts with personal observation. Understanding -다더니 allows you to engage in more sophisticated conversations, where you can reference external information and connect it to your immediate environment. For instance, if you heard it would be cold today, and you now feel a chill, you might think: 춥다더니 정말 춥네요. (I heard it would be cold, and indeed it is cold).

How This Grammar Works

-다더니 functions as a comparative connector, juxtaposing a previously heard statement with a current observation. The fundamental linguistic principle behind it is the integration of reported information with experiential evidence. The first clause, ending in -다더니, presents the information that was heard or reported.
The second clause then details the present circumstance or outcome that is being observed as a direct consequence or comparison to the first clause.
The initial statement, which forms the basis of the hearsay, must be something you learned from an external source—a person, a news report, a social media post, or even a weather forecast. This is not for expressing something you already knew or directly experienced yourself at the time the information was acquired. The -더니 component then introduces your current observation, which can either confirm the veracity of the initial report or highlight a discrepancy.
For example, if a friend told you their new restaurant was delicious, and you then tried it and found it to be so, you could use -다더니 to confirm: 친구가 맛있다더니 진짜 맛있네요. (My friend said it was delicious, and it really is delicious). Conversely, if you heard a movie was thrilling but found it dull, you would use -다더니 to express the contradiction: 재미있다더니 좀 지루하네요. (They said it was interesting, but it's a bit boring).
Crucially, the subject of the first clause (the reported statement) and the second clause (the current observation) often refers to the same entity or situation, providing a cohesive narrative. The grammar pattern inherently implies a cause-and-effect relationship or, more accurately, a statement-and-reaction relationship. It allows for a more natural and integrated expression of complex thoughts compared to simply stating two independent facts.
It captures the essence of processing information and reacting to reality in real-time.

Formation Pattern

1
The -다더니 pattern attaches to verb stems, adjective stems, and nouns, reflecting the tense and type of the original reported statement. It always incorporates the plain (non-polite, declarative) form of the verb, adjective, or noun that was reported, followed by -더니. This plain form (also known as the diary form or 해라체 hae-ra-che declarative ending) varies based on the part of speech and tense.
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Here's a detailed breakdown of its formation:
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1. For Verbs (Action Verbs)
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| Tense/Form | Plain Form Ending | -다더니 Conjugation | Example (하다 ha-da, to do) | Example (먹다 meok-da, to eat) |
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|:---------------|:------------------|:-------------------------|:-------------------------------------------|:-----------------------------------------------|
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| Present | -ㄴ다/-는다 | -ㄴ다더니 / -는다더니 | 한다더니 | 먹는다더니 |
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| Past | -았다/-었다 | -았다더니 / -었다더니 | 했다더니 | 먹었다더니 |
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| Future/Intention | -(으)ㄹ 것이다 | -(으)ㄹ 거라더니 | 할 거라더니 (I heard they would do it...) | 먹을 거라더니 (I heard they would eat it...) |
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If the verb stem ends in a vowel, use -ㄴ다더니. (e.g., 가다 ga-da -> 간다더니)
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If the verb stem ends in a consonant, use -는다더니. (e.g., 찾다 chat-da -> 찾는다더니)
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If the verb stem ends in ㄹ, ㄹ is dropped before -ㄴ다더니. (e.g., 만들다 man-deul-da -> 만든다더니)
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Example: 비가 온다더니 날씨가 맑네요. (I heard it would rain, but the weather is clear.)
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Example: 숙제를 다 했다더니 아직 안 했네요. (He said he had finished his homework, but he hasn't done it yet.)
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2. For Adjectives (Descriptive Verbs)
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| Tense/Form | Plain Form Ending | -다더니 Conjugation | Example (예쁘다 ye-ppeu-da, to be pretty) | Example (작다 jak-da, to be small) |
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|:---------------|:------------------|:-------------------------|:-------------------------------------------|:-------------------------------------|
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| Present | -다 | -다더니 | 예쁘다더니 | 작다더니 |
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| Past | -았다/-었다 | -았다더니 / -었다더니 | 예뻤다더니 | 작았다더니 |
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Simply attach -다더니 to the adjective stem for the present tense. (e.g., 좋다 joh-da -> 좋다더니)
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Example: 그 영화가 슬프다더니 정말 울었어요. (They said that movie was sad, and I really cried.)
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Example: 가격이 싸다더니 품질이 안 좋네요. (They said the price was cheap, but the quality isn't good.)
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3. For Nouns (with 이다 i-da, to be)
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| Tense/Form | Plain Form Ending | -다더니 Conjugation | Example (학생 hak-saeng, student) | Example (의사 ui-sa, doctor) |
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|:---------------|:------------------|:-------------------------|:---------------------------------|:-----------------------------|
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| Present | -(이)다 | -(이)라더니 | 학생이라더니 | 의사라더니 |
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| Past | -이었다/-였다 | -이었다더니 / -였다더니 | 학생이었다더니 | 의사였다더니 |
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If the noun ends in a vowel, use -라더니. (e.g., 친구 chin-gu -> 친구라더니)
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If the noun ends in a consonant, use -이라더니. (e.g., 선생님 seon-saeng-nim -> 선생님이라더니)
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Example: 그 사람이 가수라더니 노래를 못 하네요. (They said that person was a singer, but they can't sing.)
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Example: 주말이 휴가라더니 회사에 출근했어요. (They said the weekend was a holiday, but I went to work.)

When To Use It

-다더니 is employed in situations where you are making an observation or realizing something in the present moment, and this observation relates directly to information you previously received secondhand. It serves as a narrative device to link a past report with a current reality, often highlighting either confirmation or contradiction. This grammar pattern is incredibly versatile and frequently appears in daily Korean conversation, often conveying a sense of surprise, realization, or mild judgment.
1. Expressing Surprise or Confirmation: Use -다더니 when what you are observing matches exactly what you heard, and you want to express a sense of validation or mild astonishment. This confirms the accuracy of the reported information.
  • 맛있다더니 진짜 맛있네요. (ma-sit-da-deo-ni jin-jja ma-sit-ne-yo.) - I heard it was delicious, and it really is delicious. (Confirmation)
  • 어렵다더니 정말 어려웠어요. (eo-ryeop-da-deo-ni jeong-mal eo-ryeo-wot-sseo-yo.) - They said it was difficult, and it truly was difficult. (Confirmation)
2. Pointing Out a Contradiction: This is one of the most common uses. When your current observation is contrary to what you were told, -다더니 effectively highlights this disparity. It can carry a subtle tone of skepticism or 'I told you so' depending on context and intonation.
  • 안 온다더니 왔네요. (an on-da-deo-ni wat-ne-yo.) - They said they wouldn't come, but they came. (Contradiction)
  • 쉽다더니 너무 복잡해요. (swip-da-deo-ni neo-mu bok-jap-hae-yo.) - They said it was easy, but it's too complicated. (Contradiction)
3. Commenting on Someone's Actions Based on Their Words: You can use it to remark on someone's behavior in light of their previous statements, especially when there's a perceived inconsistency. This is often used in a slightly critical or teasing manner.
  • 공부한다더니 게임만 하고 있어요. (gong-bu-han-da-deo-ni ge-im-man ha-go it-sseo-yo.) - He said he was studying, but he's only playing games. (Discrepancy between words and actions)
  • 괜찮다더니 많이 아픈 것 같아요. (gwaen-chan-ta-deo-ni ma-ni a-peun geot gat-ta-yo.) - She said she was okay, but it seems like she's very sick. (Observing a different reality than what was reported)
4. Referring to General Information or Predictions: The source of the hearsay doesn't always have to be a specific person. It can be a forecast, a rumor, or general knowledge.
  • 날씨가 맑다더니 비가 오네요. (nal-ssi-ga mak-da-deo-ni bi-ga o-ne-yo.) - They said the weather would be clear, but it's raining. (Contradiction of a forecast)
  • 그 식당이 비싸다더니 진짜 비싸네요. (geu sik-ttang-i bi-ssa-da-deo-ni jin-jja bi-ssa-ne-yo.) - I heard that restaurant was expensive, and it really is expensive. (Confirmation of general information)
This pattern allows for a dynamic interplay between reported information and personal experience, making your Korean sound much more natural and expressive. Remember that the core requirement is that you heard something, and are now observing or realizing something related to it.

Common Mistakes

Learning to use -다더니 effectively involves understanding not just its application, but also where it is not appropriate. Learners frequently make specific errors that undermine the naturalness of their Korean. Identifying these pitfalls is crucial for mastery.
1. Using it for Direct Observation Without Prior Hearsay: The most critical mistake is using -다더니 when you haven't actually heard the information from an external source. -다더니 explicitly carries the meaning of reported speech. If you simply observe something for the first time, without any prior report, this grammar pattern is incorrect. Instead, you would use other observational endings like -네요 (ne-yo), -군요 (gun-yo), or -(으)ㄴ/는 것 같아요 (-eun/neun geot gat-ta-yo).
  • Incorrect: 비가 온다더니. (If you just look outside and see rain for the first time).
  • Correct: 비가 오네요. (Simple observation).
  • Correct: 일기예보에서 비가 온다더니 진짜 비가 오네요. (The weather forecast said it would rain, and it really is raining.) (With hearsay)
2. Applying it to One's Own Current Feelings or Actions: You cannot use -다더니 to describe your own immediate feelings or actions, as you don't 'hear' about your own internal states or present activities from an external source in the same way. The subject of the first clause (the reported information) is almost always someone or something other than the speaker themselves at the time of the reported speech.
  • Incorrect: 배고프다더니 밥을 먹어요. (If you are currently hungry and eating).
  • Correct: 배고파서 밥을 먹어요. (Because I'm hungry, I'm eating).
  • Correct: 친구가 배고프다더니 밥을 먹네요. (My friend said he was hungry, and he's eating.) (Referring to someone else)
3. Confusing it with Similar Grammar Patterns: Korean has several grammar points that involve reported speech or observation, and these can be easily conflated.
  • Contrast with -다면서 (-da-myeon-seo): While both involve reported speech, -다면서 is used when you are asking for confirmation about something you heard, or when expressing disbelief and seeking explanation. It's more of a direct challenge or question to the person who made the statement or is involved in the situation.
  • 키가 크다면서요? (I heard you were tall, is that true?) - Asking for confirmation.
  • 운동한다면서 왜 이렇게 살쪘어요? (You said you exercise, so why have you gained so much weight?) - Expressing disbelief/seeking explanation.
  • -다더니 makes an observation, while -다면서 asks for clarification or challenges.
  • Contrast with -다니까 (-da-ni-kka): This pattern is used to emphasize a previous statement or reason, often with a nuance of frustration or insistence, implying

Conjugation Table

Tense Verb/Adj Form
Present
가다
간다더니
Present
좋다
좋다더니
Past
먹다
먹었다더니
Future
하다
하겠다더니

Meanings

This grammar connects a piece of information heard from someone else with a subsequent observation or result that confirms or contradicts that information.

1

Confirmation of hearsay

Reporting hearsay and noting a result.

“그 식당이 맛있다더니 정말 사람이 많네요.”

“시험이 어렵다더니 생각보다 쉬웠어요.”

2

Contradiction of hearsay

Reporting hearsay and noting a contrary result.

“그 영화가 재미있다더니 하나도 안 재미있었어요.”

“친절하다더니 아주 불친절하네요.”

Reference Table

Reference table for Hearsay Observation: 'I heard... and now...' (-다더니)
Form Structure Example
Present
V-ㄴ다더니
온다더니
Past
V-았다더니
갔다더니
Future
V-겠다더니
하겠다더니
Negative
안 V-ㄴ다더니
안 온다더니

Formality Spectrum

Formal
맛있다더니 별로네요.

맛있다더니 별로네요. (Restaurant review)

Neutral
맛있다더니 별로예요.

맛있다더니 별로예요. (Restaurant review)

Informal
맛있다더니 별로네.

맛있다더니 별로네. (Restaurant review)

Slang
맛있다더니 별로다.

맛있다더니 별로다. (Restaurant review)

Hearsay Flow

Hearsay

Input

  • 들음 Heard

Output

  • 관찰 Observed
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Examples by Level

1

비가 온다더니 안 오네요.

I heard it would rain, but it isn't.

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맛있다더니 정말 맛있네요.

I heard it was delicious, and it really is.

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어렵다더니 생각보다 쉬웠어요.

I heard it was hard, but it was easier than I thought.

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친절하다더니 서비스가 별로네요.

I heard they were kind, but the service is poor.

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성공할 거라더니 결국 실패했군요.

They said it would succeed, but it failed in the end.

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변화가 있을 거라더니 그대로네요.

They claimed there would be changes, yet it remains the same.

Easily Confused

Hearsay Observation: 'I heard... and now...' (-다더니) vs -다고 하던데

Both report hearsay.

Common Mistakes

✗

내가 간다더니

✓

그가 간다더니

Cannot use for self.
✗

비가 온다다더니

✓

비가 온다더니

Incorrect conjugation.
✗

맛있다고 하더니

✓

맛있다더니

Redundant structure.
✗

그가 말했더니

✓

그가 말한다더니

Wrong hearsay marker.

Sentence Patterns

___(이/가) ___다더니 정말 ___네요.

Real World Usage

Social Media very common

맛집이라더니 줄이 너무 기네요.

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🎯

The 'I Told You So' Nuance

Koreans often use this when someone ignored advice and now is facing the consequences. Use it carefully, as it can sound slightly mocking if the tone is sharp!
⚠️

Subject Sensitivity

Avoid using 'I' as the subject of the first clause unless you are quoting your own past self to show how you've changed your mind or failed your own goal.
💬

Social Media Grammar

On Instagram or TikTok, you'll see people post photos with captions like '맛집이라더니...' (They said it was a famous restaurant...). Ending the sentence like this implies the rest of the thought.

Smart Tips

Use -다더니 to sound natural.

그가 좋다고 말했어요. → 그가 좋다더니 정말 좋네요.

Pronunciation

da-da-neo-ni

Liaison

The 'ㄴ' sound carries over.

Memorize It

Mnemonic

Think of '다더니' as 'Data-near-me'—the data I heard is now near me to check.

Visual Association

Imagine holding a rumor in one hand and comparing it to a real object in the other.

Rhyme

I heard it said, it's -다더니, now I see the truth, for all to see.

Story

Min-su heard the cafe was great. He went there. It was closed. He said, '맛있다더니 문을 닫았네!'

Word Web

듣다말하다소문결과관찰확인

Challenge

Find one news headline today and use -다더니 to comment on it.

Cultural Notes

Koreans use this to show they are 'in the loop' about social trends.

Derived from the contraction of -다고 하더니.

Conversation Starters

“

어제 들은 소식 중에 뭐 재미있는 거 있었어요?

Journal Prompts

Write about a movie you saw based on a recommendation.

Common Mistakes

Incorrect

Correct

Incorrect

Correct

Incorrect

Correct

Incorrect

Correct

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Test Yourself

Fill in the correct form.

그 영화가 재미있다___.

✓ Correct! ✗ Not quite. Correct answer: 다더니
Correct hearsay marker.

Score: /1

Practice Exercises

1 exercises
Fill in the correct form.

그 영화가 재미있다___.

✓ Correct! ✗ Not quite. Correct answer: 다더니
Correct hearsay marker.

Score: /1

Practice Bank

10 exercises
Complete the sentence: 'Heard he's a doctor (의사)...' Fill in the Blank

그 사람이 (의사)___ 아는 게 별로 없네요.

✓ Correct! ✗ Not quite. Correct answer: 의사라더니
Translate to Korean: 'You said you were going to sleep, but you're still awake?' Translation

(자다)___ 아직 안 자고 있어?

✓ Correct! ✗ Not quite. Correct answer: 잔다더니
Select the correct past tense hearsay form. Multiple Choice

어제 영화 (봤다)___ 어땠어?

✓ Correct! ✗ Not quite. Correct answer: 봤다더니
Reorder the words: Heard it's delicious -> really -> is delicious. Sentence Reorder

맛있다더니 / 정말 / 맛있네요 / 이 빵이

✓ Correct! ✗ Not quite. Correct answer: 이 빵이 맛있다더니 정말 맛있네요
Fix the adjective conjugation: 'Heard it's expensive (비싸다)' Error Correction

가방이 비싼다더니 별로 안 비싸네요.

✓ Correct! ✗ Not quite. Correct answer: 비싸다더니
Match the prompt with the result. Match Pairs

Match these:

✓ Correct! ✗ Not quite. Correct answer: All are valid contrasts.
Fill in the blank: 'Heard they arrived (도착하다)' Fill in the Blank

벌써 (도착하다)___ 아직 안 보이네요.

✓ Correct! ✗ Not quite. Correct answer: 도착했다더니
Which one implies confirmation of a rumor? Multiple Choice

Choose the sentence that shows something happened as expected:

✓ Correct! ✗ Not quite. Correct answer: 맵다더니 정말 맵네요.
Translate: 'Heard the boss is coming (오시다).' Translation

사장님이 (오시다)___ 왜 안 오시지?

✓ Correct! ✗ Not quite. Correct answer: 오신다더니
Correct the noun hearsay: 'Heard it's a holiday (공휴일)' Error Correction

오늘이 공휴일라더니 가게가 다 열었네.

✓ Correct! ✗ Not quite. Correct answer: 공휴일이라더니

Score: /10

FAQ (1)

No, it is for hearsay from others.

Scaffolded Practice

1

1

Mastery Progress

Needs Practice

Improving

Strong

Mastered

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In Other Languages

Spanish moderate

Se dice que...

Korean is more personal/experiential.

French moderate

Il paraît que...

Korean links to observation.

German high

Soll... sein

Korean is more conversational.

Japanese high

〜そうだ

Korean focuses on the outcome.

Chinese moderate

听说

Korean is more grammaticalized.

Arabic low

يُقال أن

Korean is more direct.

Learning Path

Prerequisites

Previous
Unintentional Ending (-go malatda)

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