YOU SAID:
Im supposed to be doing schoolwork
INTO JAPANESE
私は学業をしているはずです
BACK INTO ENGLISH
I should be studying
INTO JAPANESE
私は勉強する必要があります
BACK INTO ENGLISH
I have to study.
INTO JAPANESE
勉強しなきゃ
BACK INTO ENGLISH
I have to study.
That didn't even make that much sense in English.