YOU SAID:
I eated a bat if I did no I didn't
INTO JAPANESE
食べなかったらコウモリを食べた
BACK INTO ENGLISH
If I didn't eat it, I ate a bat
INTO JAPANESE
食べなかったらコウモリを食べた
BACK INTO ENGLISH
If I didn't eat it, I ate a bat
You've done this before, haven't you.