-더
Witnessed, Realization
-더 is a retrospective marker. It shows that the speaker is talking about something they personally saw, heard, or felt in the past.
How It Works
-더- is a pre-final ending that adds a layer of meaning to past tense statements. Its core function is to indicate that the information being shared is based on the speaker's direct, personal experience or observation. It conveys a sense of recollection or realization.
1. Direct Experience vs. Simple Past
While the standard past tense simply states a fact, -더- emphasizes that the speaker witnessed it.
- Simple Past: 어제 날씨가 좋았어요. (The weather was good yesterday.) - A neutral statement of fact.
- With -더-: 어제 날씨가 좋더라. (I recall the weather was good yesterday.) - Implies the speaker was there and is recalling their personal observation.
2. Subject Constraints
The subject of a -더- sentence is usually not the speaker (first-person 'I').
- Third-person (He/She/They): Perfect. The speaker is observing someone else.
e.g., 지수 씨가 노래를 정말 잘하더라. (I saw that Jisu sings really well.) - Second-person (You): Also common, especially when recalling something about the listener.
e.g., 너 어제 정말 피곤해 보이더라. (You looked really tired yesterday, I noticed.) - First-person (I): This is a special case. It's used when the speaker is reflecting on their own past state or action, often with a sense of surprise or new realization. It's like observing oneself from a distance.
e.g., 내가 어제 그렇게 많이 먹었더라. (I realize now that I ate so much yesterday.)
3. Common Combinations
-더- is a building block and is almost always combined with other endings:
- -더라 / -더라고(요): A statement of observed fact. The most common sentence-ending form.
e.g., 시험이 생각보다 어렵더라고요. (I found that the test was harder than I thought.) - -던: A noun-modifying form. Describes a noun that the speaker recalls from the past.
e.g., 제가 자주 가던 카페가 문을 닫았어요. (The café I used to go to often has closed.) - -더니: Connects a past observation to a subsequent result or contrast.
e.g., 아침에는 날씨가 흐리더니 지금은 맑아졌네요. (It was cloudy this morning, but now it has cleared up.) - -던가(요)?: Used to ask a question about something in the past that the speaker or listener might remember.
e.g., 우리가 작년에 여기 왔던가요? (Did we come here last year? I'm trying to recall.)
Examples (4)
- 어제 보니 민준 씨가 아주 열심히 공부하더라.
When I saw Minjun yesterday, he was studying very hard.
Word by Word: Yesterday when I saw, Minjun very diligently was studying.
The speaker is reporting their direct observation of Minjun's actions using -더라.
- 그 영화가 생각보다 재미있던데요.
That movie was more fun than I expected.
Word by Word: That movie than thought was fun.
The speaker is sharing their personal experience and realization after watching the movie. -던데요 is a common polite form for expressing a recalled observation, often when presenting a different opinion.
- 제가 어렸을 때 살던 집이 아직도 그대로예요.
The house I lived in when I was young is still the same.
Word by Word: I when was young lived-in house still is as-is.
Here, -던 is used to modify the noun 집 (house), indicating a place the speaker recalls living in from the past.
- 아까는 배가 고프더니 지금은 괜찮아졌어요.
I was hungry a while ago, but now I'm okay.
Word by Word: A while ago stomach was hungry, but now became okay.
-더니 connects the speaker's past observed state (being hungry) with the current contrasting state (being okay).
Common Mistakes
Using -더- for secondhand information.
Different Meaning친구가 그 식당이 맛있더래요.Better친구가 그 식당이 맛있대요.-더- is strictly for the speaker's own direct experience. To report what someone else said, you must use indirect quotation forms like -대요 (a contraction of -다고 해요).
Using -더- with a first-person subject for a simple past action.
Not Quite저는 어제 도서관에 가더라.Better저는 어제 도서관에 갔어요.For stating a simple fact about your own past actions, the standard past tense -았/었어요 is correct. Using -더라 sounds unnatural, as if you are observing yourself as a third person. Only use it for a first-person subject when expressing a new realization about your past state or action (e.g., 내가 그때 정말 긴장했더라 - I realize now I was really nervous back then).
Learn This First
To express witnessed past events, you need verb conjugation.
Related Patterns
- -았/었/였-Past Tense
-더- is a retrospective past marker, while -았/었- is the simple past tense marker. -더- adds the nuance of the speaker's direct observation, which -았/었- lacks.
- -더니I Noticed, And Then
-더니 is a direct combination of -더- and the connective ending -니. It links a past observation (the -더- part) to a subsequent result or contrasting situation.
- -던Had Been -ing
-던 is the noun-modifying form of -더-. It's used to describe a noun based on a past, recalled action or state.
- -더라고I Saw/heard/felt That
-더라고(요) is one of the most common sentence-ending forms using -더-. It's used to state a fact that the speaker personally observed or experienced.
- -았/었던Had Been, Used to
While -던 describes an ongoing or repeated past action/state, -았/었던 emphasizes a completed action in the past that is no longer happening. Both are retrospective noun modifiers built on the concept of recalling the past.
Learn Next
Patterns that build on this one.