YOU SAID:
ross is in school with me
INTO JAPANESE
ロスは私と一緒に学校で
BACK INTO ENGLISH
Ross was at school with me
INTO JAPANESE
ロスは私と一緒に学校にいた
BACK INTO ENGLISH
He was at school with me
INTO JAPANESE
彼は私と一緒に学校にいた
it is unlikely that this phrase will ever reach equilibrium