YOU SAID:
Why does this not work as well as it used to a few years ago
INTO JAPANESE
なぜこれが数年前にはうまくいかなかったのか
BACK INTO ENGLISH
Why did this go wrong a few years ago
INTO JAPANESE
なぜこれが数年前にうまくいかなかったのですか
BACK INTO ENGLISH
Why did this go wrong a few years ago
You've done this before, haven't you.