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Learn Korean › Grammar › ko-reason

Because (~reason)

6 phrases with native audio and pronunciation. Tap play to listen — everything on this page is free to read.

Use -아서/어서 to connect two actions or states where the first one is the reason or cause for the second. Choose 아서 if the verb stem ends in ㅏ or ㅗ, and 어서 for all other stems.

How it works

  • 동사 + -아서/어서 + reason or result

Example sentences

  1. 배가 고파서 밥을 먹어요.

    I'm eating because I'm hungry.

  2. 피곤해서 일찍 잤어요.

    I slept early because I was tired.

  3. 날씨가 좋아서 공원에 갔어요.

    I went to the park because the weather was nice.

  4. 시간이 없어서 커피를 못 마셨어요.

    I couldn't drink coffee because I didn't have time.

  5. 학교가 멀어서 버스를 타요.

    I take the bus because school is far.

  6. 숙제가 많아서 바빠요.

    I'm busy because I have a lot of homework.

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