YOU SAID:

Let's not set fire to THAT rain. It will probably kill everyone in the vicinity

INTO JAPANESE

その雨に火をつけましょう。おそらく、近くの人を殺すでしょう

BACK INTO ENGLISH

Let 's light the rain. Probably, I will kill people nearby

INTO JAPANESE

雨を降りましょう。おそらく、私は近くの人を殺すだろう

BACK INTO ENGLISH

Let's get rain. Perhaps I will kill a nearby person

INTO JAPANESE

雨が降りましょう。おそらく私は近くの人を殺すでしょう

BACK INTO ENGLISH

Let's rain. Perhaps I will kill people nearby

INTO JAPANESE

雨を降ろしましょう。おそらく私は近くの人を殺すだろう

BACK INTO ENGLISH

Let's rain down. Perhaps I will kill a nearby person

INTO JAPANESE

雨が降りましょう。おそらく私は近くの人を殺すでしょう

BACK INTO ENGLISH

Let's rain. Perhaps I will kill people nearby

INTO JAPANESE

雨を降ろしましょう。おそらく私は近くの人を殺すだろう

BACK INTO ENGLISH

Let's rain down. Perhaps I will kill a nearby person