YOU SAID:
I need to go to school and study for my exam tomorrow
INTO JAPANESE
明日の試験のために学校に行って勉強しなければなりません
BACK INTO ENGLISH
I have to go to school and study for tomorrow's exam
INTO JAPANESE
私は学校に行って明日の試験のために勉強しなければなりません
BACK INTO ENGLISH
I have to go to school and study for tomorrow's exam
That didn't even make that much sense in English.