YOU SAID:
the hat I had found fell on the ground
INTO JAPANESE
私が見つけた帽子は地面に落ちた
BACK INTO ENGLISH
The hat I found fell to the ground
INTO JAPANESE
私が見つけた帽子は地面に落ちました
BACK INTO ENGLISH
The hat I found fell to the ground
You've done this before, haven't you.