YOU SAID:
i need to finish my school
INTO JAPANESE
私は私の学校を終える必要があります
BACK INTO ENGLISH
I have to finish my school.
INTO JAPANESE
私は学校を終わらせなければならない。
BACK INTO ENGLISH
I have to finish school.
INTO JAPANESE
私は学校を終わらなければならない。
BACK INTO ENGLISH
I have to finish school.
That didn't even make that much sense in English.