YOU SAID:

you couldn't carry a tune if it had a handle on it

INTO JAPANESE

ハンドルがついていれば、曲を運ぶことはできなかった

BACK INTO ENGLISH

the steering wheel could not carry the song

INTO JAPANESE

ハンドルは歌を運ぶことができなかった

BACK INTO ENGLISH

the steering wheel could not carry the song