YOU SAID:

i would make a good chef

INTO JAPANESE

私は優秀なシェフになる

BACK INTO ENGLISH

I'll be a good chef.

INTO JAPANESE

私は優秀なシェフになります。

BACK INTO ENGLISH

I will be a good chef.

INTO JAPANESE

私は良いシェフになるでしょう。

BACK INTO ENGLISH

I will be a good chef.