✍️ Intermediate Day 8: Explaining Reasons – ~거든요 / ~(으)니까

📘 Intermediate Day 8: Explaining Reasons – ~거든요 / ~(으)니까

Welcome to Day 8 of the Intermediate Korean series! 🌟 Today’s focus is all about explaining reasons naturally in conversation using:

  • ~거든요 – for background explanations or subtle reasons
  • ~(으)니까 – for direct, causal reasons or instructions

Both of these expressions are essential for giving reasons, but they’re used in slightly different ways depending on tone and intention.


📘 1. ~거든요 – Giving Background or Soft Explanation

~거든요 is used when giving a reason or explanation in a soft, often background-focused way. It’s especially common in spoken Korean and often used when the listener didn’t ask “why” directly, but you still want to explain.

🔧 How to use:

  • Verb/Adjective/Noun + 거든요

📌 Examples:

  • 지금 바빠요. 수업이 있거든요.
    ji-geum ba-ppa-yo. su-eop-i it-geo-deun-yo
    👉 I’m busy now. I have class, you see.
  • 오늘은 못 가요. 약속이 있거든요.
    o-neul-eun mot ga-yo. yak-sok-i it-geo-deun-yo
    👉 I can’t go today. I have an appointment.
  • 그 영화는 안 봤어요. 별로 안 좋아하거든요.
    geu yeong-hwa-neun an bwat-seo-yo. byeol-lo an jo-a-ha-geo-deun-yo
    👉 I didn’t watch that movie. I don’t really like it.

📘 2. ~(으)니까 – Stating Clear Reason or Cause

~(으)니까 is used to express a direct cause-effect relationship. It’s more assertive and is often used for giving instructions or strong reasons.

🔧 How to use:

  • Verb/Adjective/Noun + (으)니까
  • 받침 O → 으니까, 받침 X → 니까

📌 Examples:

  • 날씨가 추우니까 따뜻하게 입으세요.
    nal-ssi-ga chu-u-ni-kka tta-tteut-ha-ge ip-eu-se-yo
    👉 Since it’s cold, dress warmly.
  • 배가 고프니까 밥 먹자.
    bae-ga go-peu-ni-kka bap meok-ja
    👉 I’m hungry, so let’s eat.
  • 학생이니까 열심히 공부하세요.
    hak-saeng-i-ni-kka yeol-si-mi gong-bu-ha-se-yo
    👉 Since you’re a student, study hard.

📘 Comparison Table – ~거든요 vs ~(으)니까

Pattern Function Tone Example
~거든요 Background or soft reason Gentle, explanatory 바쁘거든요 (I’m busy, you see)
~(으)니까 Cause → Result / Instruction Clear, direct 배고프니까 먹자 (I’m hungry, so let’s eat)

💬 Real-Life Dialogue Example

👦 준호: 왜 그렇게 서두르세요?
👧 수지: 늦으면 안 되거든요.
👦 준호: 알겠어요. 빨리 가니까 지하철 타요!


📘 Practice Sentences

  • 시험이 있으니까 공부해야 해요.
  • 지금 조용히 해 주세요. 회의 중이거든요.
  • 날씨가 좋아 나가고 싶지만, 약속이 있거든요.
  • 감기에 걸렸으니까 푹 쉬세요.

🧪 Mini Quiz – Reasoning Time!

  1. Translate: “I’m not going because I’m tired.”
    Click to Show Answer

    피곤하니까 안 가요.

  2. How do you say “I’m busy (you see)”?
    Click to Show Answer

    바쁘거든요.

  3. What’s the difference between “배고프니까” and “배고프거든요”?
    Click to Show Answer

    “배고프니까” is direct: I'm hungry, so I’ll eat. “배고프거든요” explains softly: I’m hungry, you see.


✅ Conclusion

🎉 Great work! Now you can explain your reasons clearly or gently depending on the situation:

  • ✔️ Use ~거든요 when giving background info or soft explanation
  • ✔️ Use ~(으)니까 when giving instructions or clear cause-effect reasons
  • ✔️ Mix both in your conversation to sound natural and expressive


📘 Coming Up Next

Tomorrow: Intermediate Day 9: Talking About Time Passed – ~ㄴ/은 지 We’ll learn how to say how long it’s been since you did something!


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