YOU SAID:

A tailor fixed twelve of my buttons since they were hanging by a thread

INTO JAPANESE

ボタンが糸でぶら下がっていたので、仕立て屋が12個のボタンを直してくれました

BACK INTO ENGLISH

A tailor fixed 12 buttons because they were hanging with thread.

INTO JAPANESE

仕立て屋が12個のボタンを糸でぶら下げていたので直しました。

BACK INTO ENGLISH

The tailor had 12 buttons hanging with thread, which I fixed.

INTO JAPANESE

仕立て屋には糸でぶら下がっている12個のボタンがあり、私はそれを直しました.

BACK INTO ENGLISH

The tailor had 12 buttons hanging with thread, which I fixed.