HYEJU LANGUAGE LAB · INTERMEDIATE 22 · LESSON 107
-아/어서 그런지Perhaps because… / Maybe it’s because…
-아/어서 그런지 suggests a reason without being sure: “Maybe because I slept well, I feel great today.” It is -아/어서 (because) + 그렇다 (be so) + -ㄴ지 (whether), so it means “maybe because of that.”
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A situation you already know
A friend says you look great today.
Maybe because I slept well last night, I feel great today.
You’re not 100% sure sleep is the reason, but it might be. 그런지 adds that “maybe.”
Build the form
- 자다 → 자 + 서 그런지 → 자서 그런지Complete expression
- 춥다 → 추워 + 서 그런지 → 추워서 그런지Complete expression
- 먹다 → 먹어 + 서 그런지 → 먹어서 그런지Complete expression
- 주말 → 주말 + 이라서 그런지 → 주말이라서 그런지Complete expression
- Verbs and adjectives: -아/어서 그런지 → 자서 그런지, 추워서 그런지, 바빠서 그런지.
- Nouns: (이)라서 그런지 → 주말이라서 그런지, 금요일이라서 그런지.
- No past tense before -아/어서: ✗잤어서 그런지. The past is understood from context.
- Negative reasons: 안 -아/어서 그런지 / -지 않아서 그런지 → 아침을 안 먹어서 그런지.
- The second half states something you observe. It can’t be a command or suggestion.
Think in Korean · an English-speaker’s guide
- English says “maybe because / probably because.” Korean puts the softener (그런지) right after the reason.
- It’s useful for being polite or modest: 제가 설명을 잘 못해서 그런지… (Maybe because I didn’t explain it well…).
- Compare: 바빠서 못 갔어요 (I couldn’t go because I was busy — sure). 바빠서 그런지 연락이 없어요 (No word from him, maybe because he’s busy — a guess).
Six examples in context
The roads are really busy, maybe because it’s the weekend.
I have no energy, maybe because I skipped breakfast.
There aren’t many customers today, maybe because of the rain.
Maybe because I practice every day, my pronunciation has improved a lot.
My friend hasn’t been in touch lately, maybe because they’re busy.
I can’t sleep, maybe because I drank a lot of coffee.
Compare with related patterns
-아/어서
늦게 자서 피곤해요.A sure reason: “I’m tired because I went to bed late” (Lesson 58).
-기 때문에
시험이 있기 때문에 공부해요.A clear, more formal reason (Lesson 61).
-는지
왜 그런지 모르겠어요.“I don’t know why.” An embedded question (Lesson 108).
| Pattern | Choose it when… |
|---|---|
| -아/어서 그런지 | a possible reason (not certain) |
| -아/어서 | a sure reason |
| -기 때문에 | a clear, formal reason |
| (이)라서 그런지 | the same with a noun |
Common mistakes
No past tense before -아/어서.
Nouns: (이)라서 그런지.
A command can’t follow it; use -(으)니까.
When you know the reason for your own action, plain -아/어서 is enough. 그런지 is for guesses.
Mini practice · six questions
Try each one before opening the answer. Translation answers are models; other natural wording is possible.
- Fill in the blank날씨가 ______ 감기에 걸린 사람이 많아요. (춥다)
Check answer
날씨가 추워서 그런지 감기에 걸린 사람이 많아요.
ㅂ irregular → 추워서 그런지.
- Fill in the blank오늘은 ______ 교통이 복잡해요. (금요일)
Check answer
오늘은 금요일이라서 그런지 교통이 복잡해요.
Noun → (이)라서 그런지.
- Choose the natural form어제 늦게 (자서 그런지 / 잤어서 그런지) 너무 졸려요.
Check answer
자서 그런지
No past before -아/어서.
- Choose the natural form일이 너무 많아요. (바빠서 / 바빠서 그런지) 오늘은 못 가요.
Check answer
바빠서
You know the reason for yourself → plain -아/어서.
- Fix the mistake주말서 그런지 공원에 사람이 많아요.
Check answer
주말이라서 그런지 공원에 사람이 많아요.
Noun → (이)라서 그런지.
- Say it in KoreanMaybe because I drank too much coffee, my heart is pounding.
Check answer
커피를 너무 많이 마셔서 그런지 가슴이 두근거려요.
A guessed reason → 마셔서 그런지.
Today’s key point
A possible reason: -아/어서 그런지 (nouns: (이)라서 그런지). No past tense before -아/어서, no command after it. If you’re sure, just use -아/어서.
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