YOU SAID:
I'm going to go to school tomorrow
INTO JAPANESE
私は明日学校に行きます
BACK INTO ENGLISH
I will go to school tomorrow
INTO JAPANESE
私は明日学校へ行く。
BACK INTO ENGLISH
I will go to the school tomorrow.
INTO JAPANESE
私は明日学校へ行く。
BACK INTO ENGLISH
I will go to the school tomorrow.
That didn't even make that much sense in English.