YOU SAID:
ive been getting it wrong for years
INTO JAPANESE
iveは何年もの間それを間違えてきました
BACK INTO ENGLISH
ive has made it wrong for years
INTO JAPANESE
iveは何年もの間それを間違っていました
BACK INTO ENGLISH
ive was wrong with it for years
INTO JAPANESE
iveは何年もの間それで間違っていました
BACK INTO ENGLISH
ive was wrong with it for years
That didn't even make that much sense in English.