YOU SAID:

Nothing you can do that can't be done, nothing you can sing that can't be sung.

INTO JAPANESE

できないこと、できないこと、歌えないことは歌えません。

BACK INTO ENGLISH

You can't sing what you can't do, what you can't do, what you can't sing.

INTO JAPANESE

できないこと、できないこと、歌えないことを歌うことはできません。

BACK INTO ENGLISH

You can't sing what you can't do, what you can't do, what you can't sing.