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Lv 2Grammar expressionBeginner · TOPIK I

-기 때문에

because; since

Attaches to a verb, adjective, or noun clause (noun + 이기 때문에) to give the reason or cause for what follows—'because.' It sounds a bit more formal/written than -아/어서 and works well before formal endings.

Form

Attaches to
Verb, Adjective, 이다, Auxiliary
Other shapes
-기 때문이다

Meanings

  1. 1

    An expression used to indicate that the preceding statement is the reason or cause for the following incident.

    앞의 내용이 뒤에 오는 일의 원인이나 까닭임을 나타내는 표현.

Examples

  • 엄마에게 거짓말을 한 건 엄마가 화를 낼까 봐 무서웠기 때문이지?

    You lied to Mom because you were scared she'd get angry, right?

  • 네, 잘못했어요. 이제는 거짓말을 하지 않을게요.

    Yes, I was wrong. I won't lie anymore.

  • 승규가 갑자기 컴퓨터를 바꾼 것은 속도가 너무 느려졌기 때문이었다.

    The reason Seunggyu suddenly replaced his computer was because it had gotten too slow.

  • 지수는 항상 성적이 좋았기 때문에 성적이 떨어진 것에 크게 충격을 받았다.

    Because Jisu's grades had always been good, she was greatly shocked when they dropped.

  • 모든 사람들의 생각이 똑같을 수는 없기 때문에 갈등이 일어난다.

    Conflict arises because not everyone can think the same way.

Examples: 한국어기초사전, CC BY-SA 2.0 KR.

Don’t confuse with

Forms with a close meaning — a favourite source of wrong answers on TOPIK.

Quick check

  1. 1. What does ‘-기 때문에’ mean?

  2. 2. Which form means “because; since”?