Korean Grammar Point
~던데 [deonde] (Used to)

~던데 [deonde] (Used to)

Short explanation:

Used to express reminiscence or something one used to do

Formation:

Verb in past tense + 던데

Examples:

그는 항상 머리를 길게 기르던데, 언제부터 짧게 자르기 시작했어요?
Geuneun hangsang meorireul gilge gireudeonde, eonjebuteo jjalbge jareugi sijakhaesseoyo?
He used to always grow his hair long, when did he start cutting it short?
내 친구는 예전에는 채소를 안 좋아했던데, 이제는 건강을 위해 열심히 먹는다고 하네요.
Nae chinguneun yejeonen chaesoreul an joahatdeonde, ijeneun geongangeul wihae yeolsimhi meokneundago haneyo.
My friend used to dislike vegetables, but now they say that they eat them diligently for health.
나는 어릴 때 청소를 정말 싫어했던데, 이제는 좋아해서 매일 하는 편이에요.
Naneun eoril ttae cheongsoeul jeongmal sirheohatdeonde, ijeneun joahaseo maeil haneun pyeonieyo.
I used to really hate cleaning when I was young, but now I like it and do it every day.
우리는 어렸을 때부터 함께 공부하던데, 지금은 각자 다른 대학교에 다녀요.
Urineun eoryeosseul ttabuteo hamkke gongbuhadeonde, jigeumeun gakja dareun daehakgyoe danyeoyo.
We used to study together from when we were young, but now we each attend different universities.

Long explanation:

'~던데 [deonde]' is a past tense verb ending used in Korean to indicate something one used to do or the way something used to be in the past. It is often used in a reminiscing context to recall past habits, situations, or states. It is also used to express surprise or disbelief by highlighting a contrast between the past and the present.

Detailed Grammar notes:

Processing keyword: ~던데 [deonde] (Used to)

Korean Grammar Point: ~던데 [deonde] (Used to)

1. Introduction

The Korean grammar point ~던데 [deonde] is a sentence-ending expression used to share past experiences or observations with a sense of reflection, surprise, or contrast. It often conveys that what the speaker observed in the past is somehow relevant to the current conversation. Understanding ~던데 is essential for intermediate learners aiming to express nuanced reflections on past events in Korean.

2. Core Grammar Explanation

Meaning

~던데 is used to:

  • Express the speaker's recollection of a past event or state.
  • Indicate contrast between past observations and current situations.
  • Convey a subtle suggestion or imply that the listener may find the information relevant. It's akin to saying "I recall that...", "I noticed that...", or "But..." in English.

Structure

Formation

Attach ~던데 to the verb or adjective stem:

Verb/Adjective Type Formation Example
Action Verb Verb stem + 던데 가던데
Descriptive Verb Adjective stem + 던데 예쁘던데
Past Tense Verb stem + 았/었던데 먹었던데
Noun + 이다 Noun + 이던데 학생이던데

Conjugation Diagram

[Verb/Adjective Stem] + 던데
  • 가다 (to go) → 가던데
  • 춥다 (to be cold) → 춥던데
  • 먹다 (to eat) → 먹던데
  • 학생이다 (to be a student) → 학생이던데

3. Comparative Analysis

~는데 vs. ~던데

Grammar Point Usage Example
~는데 Present situation/background information 비가 오는데 우산이 없어요.
~던데 Past observation relevant to the present 어제 비가 오던데 오늘은 맑네요.
  • ~는데 provides background for current events.
  • ~던데 reflects on past events impacting the present.

4. Examples in Context

Informal Spoken Language

  1. 어제 가게에 사람이 많던데.
    • I noticed there were a lot of people at the store yesterday.
  2. 그 영화 재미있던데 한번 봐봐.
    • I found that movie interesting, you should watch it.

Formal Written Language

  1. 지난주에 날씨가 따뜻하던데 이번 주는 춥네요.
    • I recall the weather was warm last week, but it's cold this week.
  2. 그분이 이전에는 교수시던데 지금은 연구원이세요.
    • He used to be a professor, but now he's a researcher.

Conversational Context

  • A: 이번 주말에 등산 갈까요?
  • B: 어제 보니까 단풍이 예쁘게 물들던데 좋을 것 같아요.
    • A: Shall we go hiking this weekend?
    • B: I noticed the leaves were beautifully colored yesterday; I think it'd be nice.

5. Cultural Notes

Politeness Levels

Using ~던데 can soften statements, making them sound less direct. It reflects Korean communication styles that value humility and indirectness, especially when offering suggestions or contrasting opinions.

Idiomatic Expressions

  • 알고 보니 친구이던데.
    • It turned out (I found out) he was a friend.

6. Common Mistakes and Tips

Common Mistakes

  1. Confusing ~던데 with ~는데
    • Incorrect: 맛있는데 많이 드세요.
    • Correct: 맛있던데 많이 드세요.
      • I found it tasty, so please have a lot.
  2. Using ~던데 with future tense
    • Incorrect: 내일 비가 오던데 우산 가져가세요.
    • Correct: 어제 비가 오던데 오늘은 어떨지 모르겠네요.
      • It rained yesterday; I wonder how it will be today.

Tips

  • Mnemonic Device: Think of ~던데 as "I recall that..." to remind you it's about past observations.
  • Remember: ~던데 cannot be used for events the speaker did not personally experience.

7. Summary and Review

Key Takeaways

  • ~던데 is used to share past experiences or observations relevant to the present.
  • It attaches directly to verb or adjective stems.
  • It often conveys reflection, contrast, or subtle suggestions.

Quick Recap Quiz

  1. How do you form ~던데 with the verb 보다 (to see)?
    • Answer: 보던데
  2. Choose the sentence that uses ~던데 correctly: a) 내일 날씨가 좋던데 같이 공원에 갈까요? b) 어제 날씨가 좋던데 오늘은 흐리네요.
    • Answer: b) 어제 날씨가 좋던데 오늘은 흐리네요.
  3. True or False: ~던데 can be used to talk about future events.
    • Answer: False

By mastering ~던데, you can express your past observations in a nuanced way, adding depth to your Korean conversations.

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