YOU SAID:
I wonder why I haven't used it more.
INTO JAPANESE
なぜもっと使わなかったのか不思議です。
BACK INTO ENGLISH
I wonder why they didn't use it more.
INTO JAPANESE
なぜもっと使わなかったのか不思議です。
BACK INTO ENGLISH
I wonder why they didn't use it more.
You've done this before, haven't you.