YOU SAID:

My sister is in elementary and I'm in middle school.

INTO JAPANESE

姉は小学校であると私は中学校にいますよ。

BACK INTO ENGLISH

And sister is a primary school I'm in junior high school.

INTO JAPANESE

そして、妹は私が中学校にいる小学校です。

BACK INTO ENGLISH

And, my sister is a primary school that I'm in junior high school.

INTO JAPANESE

そして、私の妹は私が中学校にいる小学校です。

BACK INTO ENGLISH

And my sister is an elementary school that I'm in junior high school.

INTO JAPANESE

そして、私の妹は私が中学校にいる小学校です。

BACK INTO ENGLISH

And my sister is an elementary school that I'm in junior high school.