Korean Grammar Point
~하자 [haja] (Upon doing, as soon as)

~하자 [haja] (Upon doing, as soon as)

Short explanation:

Used to show that the action in the second clause happens immediately after the action in the first clause.

Formation:

Verb Stem + 하자

Examples:

문을 열자 마자, 강아지가 바로 들어왔어요.
Mun-eul yeol-ja-ma-ja, gang-aji-ga ba-ro deul-eo-wass-eo-yo.
As soon as I opened the door, the dog came in immediately.
나는 길을 건너자 마자 택시를 탔어요.
Na-neun gil-eul geon-neo-ja ma-ja taek-si-reul tat-eo-yo.
As soon as I crossed the street, I got in a taxi.
비가 오자 바로 우산을 썼어요.
Bi-ga o-ja ba-ro u-san-eul sseoss-eo-yo.
As soon as it rained, I immediately used an umbrella.
책을 덮는자 마자 잠이 왔어요.
Chaek-eul deopneun-ja ma-ja, jam-i wass-eo-yo.
As soon as I closed the book, I felt sleepy.

Long explanation:

'~하자 [haja]' is a conjunction used in Korean to express the immediacy of an event or action that follows another. It can be translated as 'upon doing...', 'as soon as...' in English. It gives a sense of something happening the moment a prior action has completed without any gap in between.

Detailed Grammar notes:

Processing keyword: ~하자 [haja] (Upon doing, as soon as)

Korean Grammar Point: ~하자 [haja] (Upon doing, as soon as)

Korean Grammar Lesson: ~자 [ja] (Upon Doing, As Soon As)


1. Introduction

The grammar point ~자 is a connective ending in Korean used to express that one action occurs immediately after another. It translates to "as soon as", "upon doing", or "the moment". Understanding ~자 enables you to describe sequential actions effectively, enhancing the fluency and coherence of your speech and writing.

2. Core Grammar Explanation

Meaning

  • ~자 indicates that the action in the second clause happens immediately after the action in the first clause.
  • It emphasizes the promptness and immediacy between two actions.

Structure

The structure for using ~자 is as follows:

  1. Verb Stem + 자 + [Second Clause]

Formation Diagram

[Action Verb Stem] + 자 + [Second Clause]

Explanation

  • Action Verb Stem: Remove -다 from the dictionary form of the verb.
  • Add directly to the verb stem.
  • Follow with the second clause that occurs immediately after.

3. Comparative Analysis

~자 vs. ~자마자

  • ~자 and ~자마자 both mean "as soon as", but ~자마자 is slightly more emphatic.
  • ~자마자 can be used in both spoken and written language, while ~자 is more common in written or formal contexts.
Grammar Point Usage Nuance
~자 Verb Stem + 자 + [Clause] Immediate action; often in written/formal.
~자마자 Verb Stem + 자마자 + [Clause] More emphatic immediacy; common in speech.

~자 vs. ~고 나서

  • ~고 나서 means "after doing", indicating a sequence but without emphasizing immediacy.
Grammar Point Usage Nuance
~자 Verb Stem + 자 + [Clause] Immediate succession of actions.
~고 나서 Verb Stem + 고 나서 + [Clause] One action completed before the next.

4. Examples in Context

Example Sentences

  1. 집에 도착하자 비가 내리기 시작했어요.
    • As soon as I arrived home, it started to rain.
  2. 수업이 끝나자 학생들이 교실에서 나갔어요.
    • As soon as the class ended, the students left the classroom.
  3. 그 소식을 듣자 그녀는 눈물을 흘렸습니다. (Formal)
    • Upon hearing the news, she shed tears.
  4. 버스가 멈추자 사람들이 내리기 시작했어요.
    • As soon as the bus stopped, people started to get off.
  5. 친구를 보자마자 달려가서 안았어요.
    • As soon as I saw my friend, I ran and hugged them. (Using ~자마자 for comparison)

Context Variations

  • Formal Written: Often used in narratives, reports.
  • Informal Spoken: Less common; speakers might prefer ~자마자.

5. Cultural Notes

Levels of Politeness and Formality

  • ~자 is neutral but often leans towards formal or written language.
  • In spoken Korean, especially informal contexts, ~자마자 is more commonly used.

Idiomatic Expressions

  • 눈 깜짝할 사이에 일이 끝나자 모두 놀랐어요.
    • Everyone was surprised as the work was done in the blink of an eye.

6. Common Mistakes and Tips

Common Mistakes

  1. Using ~자 with Imperative or Propositive Sentences
    • Incorrect: 집에 도착하자 쉬자.
      • Let's rest as soon as we arrive home.
    • Correction: Use ~자마자 or change the sentence structure.
      • 집에 도착하자마자 쉬자.
        • Let's rest as soon as we arrive home.
  2. Attaching ~자 to Adjectives
    • ~자 is only used with action verbs, not adjectives (descriptive verbs).

Tips

  • Remember that ~자 connects two actions where the second happens immediately after the first.
  • Do not use tense markers (like 았/었) before ~자.
    • Correct: 끝나자, Incorrect: 끝났자

7. Summary and Review

Key Takeaways

  • ~자 is used to express that one action occurs immediately after another.
  • Formed by attaching ~자 to the verb stem of an action verb.
  • Commonly used in formal and written contexts.
  • Do not use with adjectives or in imperative/propositive sentences.

Quick Recap Quiz

  1. How do you form a sentence using ~자?
  2. Is ~자 more commonly used in spoken or written Korean?
  3. Correct the mistake in the following sentence:
    • 비가 오았자 우산을 썼어요. Answers:
  4. Attach ~자 to the action verb stem, followed by the second clause.
  5. Written Korean.
  6. Remove the tense marker :
    • 비가 오자 우산을 썼어요.
      • As soon as it rained, I used an umbrella.

Congratulations! You've learned how to use ~자 to express immediate sequential actions in Korean.

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