YOU SAID:

I'm going to kashoot up the school

INTO JAPANESE

私は学校を kashoot をつもりです。

BACK INTO ENGLISH

I am going to the kashoot school.

INTO JAPANESE

Kashoot 学校をつもりです。

BACK INTO ENGLISH

Kashoot school is going.

INTO JAPANESE

Kashoot 学校が起こっています。

BACK INTO ENGLISH

Kashoot school is going.