YOU SAID:

He was my cousin's mother's nephew's boss's dog's previous owner

INTO JAPANESE

彼は私のいとこの母親の甥の上司の犬の前オーナーだった

BACK INTO ENGLISH

He was the former owner of the dog's boss of my nephew's mother's nephew

INTO JAPANESE

彼は私の甥の母親の甥の犬の上司の元オーナーだった

BACK INTO ENGLISH

He was the former owner of my nephew's mother's nephew's dog's boss

INTO JAPANESE

彼は私の甥の母の甥の犬ボスの元の所有者だった

BACK INTO ENGLISH

He was the original owner of my nephew's mother's nephew's dog Boss

INTO JAPANESE

彼は私の甥の母の甥の犬ボスの元の所有者だった

BACK INTO ENGLISH

He was the original owner of the mother of my nephew's nephew dog boss

INTO JAPANESE

彼は私の甥の甥の犬ボスの母の元の所有者だった

BACK INTO ENGLISH

He was the original owner of the mother of my nephew's dog boss

INTO JAPANESE

彼は私の甥の犬ボスの母の元の所有者だった

BACK INTO ENGLISH

He was the original owner of the mother of my nephew's dog boss