YOU SAID:

yeah it was scary, he had a knife I think

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はい、それは怖かった、彼と思うナイフ

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Yes, it was scary, think his knife

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はい、それは怖かった、彼のナイフを考える

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Yes, it is considering, his knife

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はい、それは検討している、彼のナイフ

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Yes, it is considered that his knife

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はい、それと考えられる彼のナイフ

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Yes, it is thought his knife

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はい、それは彼のナイフを考えられる

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Yes, it's possible his knife

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はい、それは可能彼のナイフ

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Yes, it's possible his knife