immersionlog

というのも

the reason is, you see

Statement。というのも、reason + からだ / のだ。

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というのも gives the reason behind what was just said: 最近、よく眠れない。というのも、隣の工事がうるさいからだ, "I haven't been sleeping well lately. The reason is that the building work next door is so noisy".

It's like なぜなら (N3), but softer and more conversational. The reason usually ends with からだ, のだ or んです.

It sounds like an explanation offered to help the listener understand, rather than an argument. That makes it common in explanations, apologies and storytelling.

Don't confuse it with というのは (N3, "what X means") or というと ("speaking of").

Examples

  • 最近さいきん、よく眠ねむれない。というのも、隣となりの工事こうじがうるさいからだ。

    I haven't been sleeping well lately. The reason is that the building work next door is so noisy.

  • 今日きょうは早はやく帰かえります。というのも、母ははが入院にゅういんしているんです。

    I'm going home early today. You see, my mother is in hospital.

  • 彼女かのじょは怒おこっている。というのも、私わたしが約束やくそくを忘わすれたからだ。

    She's angry, because I forgot our plans.

  • 旅行りょこうはやめた。というのも、お金かねがないからだ。

    I've given up on the trip. The reason is I don't have the money.

  • 彼かれに頼たのんだ。というのも、この分野ぶんやに詳くわしいからだ。

    I asked him, because he knows this field well.

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