YOU SAID:

Once upon a time there was a cat and it was sad

INTO JAPANESE

昔々猫がいて悲しかった

BACK INTO ENGLISH

Once upon a time I was sad to have a cat

INTO JAPANESE

昔々、猫を飼うのは悲しいことでした

BACK INTO ENGLISH

Once upon a time, it was sad to have a cat

INTO JAPANESE

昔々、猫を飼うのは悲しいことでした

BACK INTO ENGLISH

Once upon a time, it was sad to have a cat