YOU SAID:

why are you my sister

INTO JAPANESE

なぜあなたは私の妹、します。

BACK INTO ENGLISH

Why do you want my sister.

INTO JAPANESE

私の妹はなぜたいです。

BACK INTO ENGLISH

Why my sister doesn't want to is.

INTO JAPANESE

なぜ妹はたいです。

BACK INTO ENGLISH

Why is my sister you want is.

INTO JAPANESE

なぜ妹がほしいです。

BACK INTO ENGLISH

Why would my sister.

INTO JAPANESE

私の妹はなぜでしょう。

BACK INTO ENGLISH

Why would my sister.