YOU SAID:

never felt sorry for a piece of gum till now.

INTO JAPANESE

今までガムを惜しんだことは一度もなかった。

BACK INTO ENGLISH

I have never been stingy with gum before.

INTO JAPANESE

私はこれまでガムをケチったことはありません。

BACK INTO ENGLISH

I've never been stingy with gum.

INTO JAPANESE

私はガムをケチったことはありません。

BACK INTO ENGLISH

I've never been stingy with gum.