V/A + 아/어서 그런지 Korean Grammar 

 December 12, 2025

By  Pooja Madane

Let's learn how to use the V/A + 아/어서 그런지 Korean Grammar with some simple and easy-to-understand example sentences.

 V/A + 아/어서 그런지 “maybe because…”, “it seems that because…”, or “I think it’s because…”

USE:

The expression -아/어서 그런지 is used when you guess or assume the reason for a situation.
It’s similar to saying “maybe because…”, “it seems that because…”, or “I think it’s because…” in English.

You’re not 100% sure, but you’re making a logical guess about why something happened or why someone feels a certain way.

CONJUGATION RULE

Attach -아/어서 그런지 to the verb or adjective stem that expresses the reason.
The choice between -아 or -어 depends on vowel harmony (just like in other Korean grammar rules).

How to form it:

  1. Take the verb/adjective stem.

  2. Add -아서 그런지 or -어서 그런지 depending on the vowel.

  3. Complete the sentence with the result or assumption.

Examples:

  • 춥다 → 추워서 그런지 (Maybe because it’s cold)

  • 피곤하다 → 피곤해서 그런지 (Maybe because I’m tired)

  • 기분이 좋다 → 기분이 좋아서 그런지 (Maybe because I feel good)

  • 배고프다 → 배고파서 그런지 (Maybe because I’m hungry)

EXAMPLE SENTENCES:

  • 1. 요즘 피곤해서 그런지 자꾸 졸려요.

    → Maybe because I’m tired these days, I keep feeling sleepy.
  • 2. 비가 와서 그런지 기분이 좀 우울해요.
    → Maybe because it’s raining, I feel a little down.

  • 3. 날씨가 추워서 그런지 사람들이 밖에 없어요.
    → Maybe because it’s cold, there aren’t many people outside.

  • 4. 오늘 기분이 좋아서 그런지 모든 게 잘 되는 것 같아요.
    → Maybe because I’m in a good mood today, everything seems to go well.

  • 5. 어제 늦게 자서 그런지 머리가 아파요.
    → Maybe because I slept late yesterday, my head hurts.

  • Additional Notes

  • This grammar shows uncertainty, so it’s different from -아/어서 (because) which states a clear reason.
    • -아/어서 → certain cause: “비가 와서 못 갔어요.” (I couldn’t go because it rained.)

    • -아/어서 그런지 → assumed cause: “비가 와서 그런지 기분이 안 좋아요.” (Maybe because it rained, I feel bad.)

  • You can use it in both spoken and written Korean, especially when guessing reasons politely.

  • The sentence after -아/어서 그런지 usually describes a result, feeling, or situation that you’re observing.

  • Pooja Madane


    Pooja Madane is a passionate Korean language learner and educator who aims to make Korean simple, engaging, and accessible for beginners. She has experience in creating interactive content, explaining grammar in easy ways, and connecting language learning with culture. At LKI, she is dedicated to guiding students step by step, building confidence, and helping them enjoy their journey of learning Korean.

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