YOU SAID:

I’m starting to think that it’s not raining cats and dogs

INTO JAPANESE

猫と犬に雨が降っていないと思うようになりました

BACK INTO ENGLISH

I began to think that cats and dogs weren't raining.

INTO JAPANESE

猫も犬も雨が降っていないと思うようになった。

BACK INTO ENGLISH

I began to think that neither the cat nor the dog had rained.

INTO JAPANESE

私は猫も犬も雨が降っていないと思うようになった。

BACK INTO ENGLISH

I began to think that neither the cat nor the dog had rained.