YOU SAID:

I don't know why my brother is watching videos here when he could be in a cooler place

INTO JAPANESE

私は弟が涼しい場所にいるかもしれないのに、なぜ私の兄がここでビデオを見ていないのか分からない

BACK INTO ENGLISH

I don't know why my brother didn't watch the video here when my brother might be in a cool place.

INTO JAPANESE

兄が涼しい場所にいるかもしれないとき、なぜ私の兄はここでビデオを見なかったのか分かりません。

BACK INTO ENGLISH

I don't know why my brother didn't watch the video here when he might be in a cool place.

INTO JAPANESE

私は兄がクールな場所にいるかもしれないのに、なぜここでビデオを見なかったのか分かりません。

BACK INTO ENGLISH

I don't know why my brother didn't watch the video here when he might be in a cool place.