YOU SAID:
one upon a time a few mistakes ago
INTO JAPANESE
少し前の間違いがありました
BACK INTO ENGLISH
There was a mistake a little while ago.
INTO JAPANESE
少し前に間違いがありました。
BACK INTO ENGLISH
There was a mistake some time ago.
INTO JAPANESE
少し前に間違いがありました。
BACK INTO ENGLISH
There was a mistake some time ago.
Come on, you can do better than that.