YOU SAID:

I can be a better boyfriend than him, I can do things that he never did

INTO JAPANESE

私は彼よりも良い彼氏になれる、彼がやったことのないことができる

BACK INTO ENGLISH

I can be a better boyfriend than he, I can do things he's never done.

INTO JAPANESE

私は彼よりも良い彼氏になれる彼がやったことのないこともできる

BACK INTO ENGLISH

I can be a better boyfriend than he is, and I can do things he's never done.

INTO JAPANESE

彼以上の彼氏になれるし、彼がやったこともないこともできる。

BACK INTO ENGLISH

You can be more than he can be, and you can do things he has never done.

INTO JAPANESE

君は彼よりも強くなることができるし、彼がやったこともないこともできる。

BACK INTO ENGLISH

You can be stronger than him, and you can do things he has never done. [M]

INTO JAPANESE

君は彼より強くなれるし、彼がやったことのないこともできる。

BACK INTO ENGLISH

You can be stronger than him, and you can do things he has never done. [M]