YOU SAID:
I did not do my homework
INTO JAPANESE
宿題やってない
BACK INTO ENGLISH
Not doing homework
INTO JAPANESE
宿題をしない
BACK INTO ENGLISH
Don't do homework
INTO JAPANESE
宿題をしないでください
BACK INTO ENGLISH
Do not do homework
INTO JAPANESE
宿題をしないでください
BACK INTO ENGLISH
Do not do homework
That didn't even make that much sense in English.