YOU SAID:

I am your father’s brother’s nephew’s cousin’s former roommate.

INTO JAPANESE

私はあなたの父親の弟の甥のいとこの元ルームメイト。

BACK INTO ENGLISH

I'm your father's brother's nephew's cousin's former roommate.

INTO JAPANESE

私はあなたの父親の弟の甥のいとこの元ルームメイト。