YOU SAID:
I played at school with my friend who wasn't there.
INTO JAPANESE
学校ではなかった私の友人と遊びました。
BACK INTO ENGLISH
Played with the school was not my friend.
INTO JAPANESE
私の友人はなかった学校で演奏。
BACK INTO ENGLISH
A friend of mine played in schools did not.
INTO JAPANESE
私の友人を果たした学校はしませんでした。
BACK INTO ENGLISH
Didn't the school played a friend of mine.
INTO JAPANESE
学校の私の友人に演奏をしていません。
BACK INTO ENGLISH
My school friend doesn't play.
INTO JAPANESE
学校の友達が再生されません。
BACK INTO ENGLISH
School friends do not play.
INTO JAPANESE
学校の友達が再生されません。
BACK INTO ENGLISH
School friends do not play.
That didn't even make that much sense in English.