YOU SAID:

I don't know who you are, but you're stepping on my foot!

INTO JAPANESE

誰だか知らないけど、私の足を踏んでるのよ！

BACK INTO ENGLISH

I don't know who it is, but it's stepping on my foot!

INTO JAPANESE

誰だか分からないけど足を踏んでる！

BACK INTO ENGLISH

I don't know who it is, but I'm stepping on it!

INTO JAPANESE

誰だか分からないけど踏んでます！

BACK INTO ENGLISH

I don't know who it is, but I'm stepping on it!