YOU SAID:
I made all A's in school.
INTO JAPANESE
私はすべてのAを学校で作りました。
BACK INTO ENGLISH
I made all A at school.
INTO JAPANESE
私は全部Aで学校に行きました。
BACK INTO ENGLISH
I went to school at A all.
INTO JAPANESE
私はA allの学校に行きました。
BACK INTO ENGLISH
I went to A all's school.
INTO JAPANESE
私はA allの学校に行きました。
BACK INTO ENGLISH
I went to A all's school.
That didn't even make that much sense in English.