YOU SAID:
I abandoned my parents
INTO JAPANESE
私の両親を放棄しました。
BACK INTO ENGLISH
My parents were abandoned.
INTO JAPANESE
私の両親が放置されていた。
BACK INTO ENGLISH
My parents had been neglected.
INTO JAPANESE
私の両親が放置されていた。
BACK INTO ENGLISH
My parents had been neglected.
That didn't even make that much sense in English.