YOU SAID:

He didn't know why, but they made him uneasy

INTO JAPANESE

理由は分からなかったが、彼らは彼を不安にさせた

BACK INTO ENGLISH

I didn't know why, but they made him uneasy.

INTO JAPANESE

理由はわかりませんでしたが、彼らは彼を不安にさせました。

BACK INTO ENGLISH

I don't know why, but they made him uneasy.

INTO JAPANESE

理由は分かりませんが、それらは彼を不安にさせました。

BACK INTO ENGLISH

I don't know why, but they made him uneasy.