YOU SAID:
When you can't get up for another day at school.
INTO JAPANESE
別の日に学校に行けないとき。
BACK INTO ENGLISH
When I can not go to school on another day.
INTO JAPANESE
私は別の日に学校に行けないとき。
BACK INTO ENGLISH
When I can not go to school on another day.
That didn't even make that much sense in English.