Recall and Discovery

Korean Grammar 3

Course 3 · Chapter 9 · Recall and Discovery: -더-

👁️ Recall and Discovery — 회상

Korean has a small marker, -더-, that does something English has no word for: it tells the listener that the speaker saw, heard or experienced what is being described, and is now recalling it. It is not a plain past tense; it is a tense-and-evidence marker rolled into one. It appears in several common endings: -더라, -던, -았/었던, -더니, -았/었더니 and, in a related way, -다니. This chapter sorts them out.

The rule in one box -더- = "I observed this in the past, and I am now remembering it." -더라 / -더라고요: reporting a discovery ("I found that…"). -던: modifier for an action interrupted or a habit of the past ("the book I was reading", "the house where I used to live"). -았/었던: modifier for a completed event that is recalled. -더니: after observing A, B followed (or contrasted). -았/었더니: when I did A, I found B. -다니: surprise at news.

-더라 and -더라고요: "I found that…"

Stem + -더라 (casual, a little self-talk) or -더라고(요) (the polite everyday form). It reports something the speaker personally observed, often something new or unexpected. Its natural subject is another person or a thing; for yourself it appears mainly for a discovery about yourself.

Example	Meaning
어제 그 식당에 가 봤는데 음식이 맛있더라고요.	I tried that restaurant yesterday and the food was good (I found).
친구가 벌써 와 있더라.	My friend was already there (I saw).
그 영화는 별로 재미없더라고요.	That film wasn't very interesting (I thought).

Ending	Time of the discovery	Example
-네요	just now, as you notice it	음식이 맛있네요. (You taste it now.)
-더라고요	earlier, remembered	음식이 맛있더라고요. (You tasted it then.)

-던: unfinished actions and past habits

Stem + -던 modifies a noun. It has two chief meanings: an action that was started but not finished, and a past habit or state that has since ended.

Meaning	Example	English
interrupted action	제가 읽던 책이 어디 있어요?	Where is the book I was reading?
interrupted action	먹던 빵을 남겼어요.	I left the bread I was eating.
past habit	제가 다니던 학교는 서울에 있어요.	The school I used to attend is in Seoul.
past state	제가 살던 집은 작았어요.	The house I used to live in was small.

-았/었던: a recalled, completed event

Past stem + -던 makes -았/었던, a modifier for something that was done and is over, recalled from memory. Compare the three modifiers of 먹다:

Modifier	Example	Sense
먹던	먹던 음식	the food I was eating (not finished)
먹은	먹은 음식	the food I ate (plain past)
먹었던	먹었던 음식	the food I (once) ate, remembered

Example: 제가 어렸을 때 먹었던 음식이 생각나요. "I remember the food I ate when I was little." The recalled event is something you now look back on.

-더니: after seeing A, B followed

Stem + -더니 connects two things the speaker observed. The first clause is usually about another person (or the weather); the two clauses share a subject. Two uses:

Use	Example	Meaning
cause and effect	동생이 열심히 공부하더니 합격했어요.	My younger sibling studied hard, and then passed.
change or contrast	어제는 덥더니 오늘은 춥네요.	It was hot yesterday, but today it's cold.
an observed sequence	아이가 울더니 곧 잠들었어요.	The child cried and then soon fell asleep.

-았/었더니: when I did A, I found B

Past stem + -더니 is used when the speaker did A and then discovered B. The subject of the first clause is "I", and B is a result or discovery.

Example	Meaning
집에 갔더니 아무도 없었어요.	When I went home, no one was there.
약을 먹었더니 열이 내렸어요.	I took medicine, and my fever went down.
창문을 열었더니 바람이 불었어요.	When I opened the window, a wind blew in.

Watch out: -더니 against -았/었더니 Ask whose action starts the sentence. 친구가 공부하더니 합격했어요 (a friend studied: you watched) uses -더니. 제가 공부했더니 합격했어요 (I studied) uses -았/었더니. Do not put "I" as the subject with plain -더니 for an action.

-다니: surprise at news

A sentence ending in the plain form + -다니 reacts with surprise to something you have heard or seen: "to think that…!" This -다니 is a separate pattern, not built on -더-, but it is taught here because it also marks a reaction to something you have just found out.

Example	Meaning
벌써 졸업했다니 믿을 수 없어요.	I can't believe you've graduated already.
그 사람이 거짓말을 하다니!	To think he would tell a lie!

Watch out: -더- cannot describe your own feelings or intentions Because -더- reports what you observed, it does not fit statements of your own present feeling or will: ✗ 저는 배고프더라 in ordinary speech. For present feelings, use the plain ending; for new things you notice now, -네요. For past experience about yourself, use -았/었어요.

🗣️ In Use — 실제 예문

Three exchanges with -더-.

① A recommendation (-더라고요)

A: 그 카페 어때요? How is that café?

B: 가 봤는데 커피가 정말 맛있더라고요. I went, and the coffee was really good.

② A memory (-던)

A: 여기 예전에 서점 있었죠? There used to be a bookshop here, didn't there?

B: 네, 제가 자주 가던 곳이었어요. Yes, it was a place I used to go often.

③ A discovery (-았/었더니)

A: 감기는 좀 나았어요? Is your cold better?

B: 네, 약을 먹고 푹 잤더니 괜찮아졌어요. Yes, I took medicine and slept well, and I feel fine.

📋 Quick Reference — 요약표

Pattern	Meaning	Example
-더라 / -더라고요	I observed that…	맛있더라고요
-던 (modifier)	interrupted action; past habit	읽던 책 · 살던 집
-았/었던 (modifier)	recalled completed event	먹었던 음식
-더니	after I saw A, B; contrast	공부하더니 합격했어요
-았/었더니	when I did A, I found B	갔더니 없었어요
-다니	surprise at news	졸업했다니!

✏️ Try It Yourself — 연습

Work out the answer first, then click to check.

1. Say "I tried the dish, and it was delicious" (a discovery, polite) with -더라고요.

Show answer

먹어 봤는데 맛있더라고요.

2. Say "Where is the book I was reading?"

Show answer

제가 읽던 책이 어디 있어요?

3. Say "The house where I used to live" with -던.

Show answer

제가 살던 집

4. Which differs: 먹던 빵 or 먹은 빵?

Show answer

먹던 빵 = bread I was in the middle of eating; 먹은 빵 = bread I ate (finished).

5. Say "It was hot yesterday but today it's cold" with -더니.

Show answer

어제는 덥더니 오늘은 춥네요.

6. Say "When I opened the door, a cat was there" with -았/었더니.

Show answer

문을 열었더니 고양이가 있었어요.

7. Choose -더니 or -았/었더니: "My friend studied hard and passed."

Show answer

-더니: 친구가 열심히 공부하더니 합격했어요. (The friend is the subject; you observed it.)

8. Say "To think that he's already married!" with -다니.

Show answer

벌써 결혼했다니!

9. Why is 저는 배고프더라 odd?

Show answer

-더- reports something observed, and you do not "observe" your own present hunger. Use 저는 배고파요.

Coming up in Chapter 10: Degree and Comparison. You will learn 보다, 만큼, 처럼 and 같이, 가장, 더, 덜 and 제일, and -(으)ㄴ/는 편이다, -(으)ㄹ 정도 and -(으)ㄹ수록 for "the more … the more".