YOU SAID:

It has rained a few of the dogs and much of the box died

INTO JAPANESE

数匹の犬が雨になり、箱の多くが死んだ

BACK INTO ENGLISH

Several dogs rained and many of the boxes died

INTO JAPANESE

数匹の犬が雨を降らせ、箱の多くが死んだ

BACK INTO ENGLISH

Several dogs rained and many of the boxes died