YOU SAID:

your mother was the niece of a rich man

INTO JAPANESE

あなたの母親は金持ちのnieだった

BACK INTO ENGLISH

Your mother was a rich nie

INTO JAPANESE

あなたの母親は金持ちのだった

BACK INTO ENGLISH

Your mother was rich

INTO JAPANESE

あなたの母親は金持ちでした

BACK INTO ENGLISH

Your mother was rich