YOU SAID:

Why did you do that to me? i could've done so much more.

INTO JAPANESE

なぜ私にそうしたのですか？もっともっとできたかもしれない。

BACK INTO ENGLISH

Why did you do it to me? I could have done more.

INTO JAPANESE

なぜ私にそれをしたのですか？もっとできたかもしれない。

BACK INTO ENGLISH

Why did you do it to me? I could have done more.