YOU SAID:

I'm going to shoot up the school.

INTO JAPANESE

私は学校を撃つつもりです。

BACK INTO ENGLISH

I am going to shoot school.

INTO JAPANESE

私は学校に行きます。

BACK INTO ENGLISH

I am going to school.

INTO JAPANESE

私は学校に行きます。

BACK INTO ENGLISH

I am going to school.