YOU SAID:
When you buy a book but never get around to reading it.
INTO JAPANESE
あなたが本を買うときにそれを読んで回ることは決してありません。
BACK INTO ENGLISH
I will never read it when you buy a book.
INTO JAPANESE
私はあなたが本を買うときそれを読むことは決してないでしょう。
BACK INTO ENGLISH
I will never read it when you buy a book.
You've done this before, haven't you.