YOU SAID:

i can't sleep because i have school tomorrow

INTO JAPANESE

私は明日学校があるので私は寝ることができません

BACK INTO ENGLISH

I can not sleep because I have a school tomorrow

INTO JAPANESE

私は明日学校があるので寝ることができません

BACK INTO ENGLISH

I can not go to bed because I have a school tomorrow

INTO JAPANESE

明日学校があるので寝ることができません

BACK INTO ENGLISH

I can not go to bed because I have a school tomorrow