YOU SAID:
I’m going to the fair with my friends.
INTO JAPANESE
私は友達と一緒にフェアに行くよ。
BACK INTO ENGLISH
I will go fair with my friends.
INTO JAPANESE
私は友達と公平に行きます。
BACK INTO ENGLISH
I will be fair with my friends.
INTO JAPANESE
私は友人と公正になります。
BACK INTO ENGLISH
I will be fair with my friends.
That didn't even make that much sense in English.