YOU SAID:

I do not want to go to school but I will be late for school if I don't go

INTO JAPANESE

学校に行きたくないけど行かないと学校に遅刻してしまう

BACK INTO ENGLISH

I don't want to go to school, but if I don't I'll be late for school.

INTO JAPANESE

学校に行きたくないのですが、行かないと学校に遅刻してしまいます。

BACK INTO ENGLISH

I don't want to go to school, but if I don't go, I'll be late for school.

INTO JAPANESE

学校に行きたくないのですが、行かないと学校に遅刻してしまいます。

BACK INTO ENGLISH

I don't want to go to school, but if I don't go, I'll be late for school.