YOU SAID:
I lost my wallet on the train yesterday
INTO JAPANESE
昨日電車の中で財布をなくしてしまいました
BACK INTO ENGLISH
I lost my wallet on the train yesterday
INTO JAPANESE
昨日電車の中で財布をなくしてしまいました
BACK INTO ENGLISH
I lost my wallet on the train yesterday
You've done this before, haven't you.