YOU SAID:
My fish threw a piano out of my window
INTO JAPANESE
私の魚は私の窓からピアノを投げました
BACK INTO ENGLISH
my fish threw the piano out my window
INTO JAPANESE
私の魚は私の窓からピアノを投げた
BACK INTO ENGLISH
my fish threw the piano out my window
You've done this before, haven't you.