YOU SAID:
I will make him an offer he cannot refuse.
INTO JAPANESE
私は彼に彼が拒絶できない申し出をするつもりです。
BACK INTO ENGLISH
I will offer him an offer he can not refuse.
INTO JAPANESE
私は彼が拒絶できない申し出を彼に申し出るでしょう。
BACK INTO ENGLISH
I will offer him an offer he can not refuse.
Well done, yes, well done!