YOU SAID:
it took you that long to understand proper english
INTO JAPANESE
適切な英語を理解する長いことかかった
BACK INTO ENGLISH
It took a long time to understand proper English
INTO JAPANESE
適切な英語を理解する長い時間がかかった
BACK INTO ENGLISH
It took me a long time to understand proper English
INTO JAPANESE
適切な英語を理解する長い時間をかかった
BACK INTO ENGLISH
It took me a long time to understand proper English
You've done this before, haven't you.