YOU SAID:

I couldn't go because it was raining cats and dogs and I didn't have an umbrella

INTO JAPANESE

猫と犬が雨が降っていて、傘を持っていなかったので行けませんでした

BACK INTO ENGLISH

Cats and dogs were raining and couldn't go because they didn't have an umbrella

INTO JAPANESE

猫と犬は雨が降っていて、傘を持っていなかったので行けませんでした

BACK INTO ENGLISH

Cats and dogs were raining and couldn't go because they didn't have an umbrella