YOU SAID:

My mom said that I cant go sleep over tonight because I need to get my homework done

INTO JAPANESE

母は宿題を終わらせる必要があるので今夜は眠れないと言った

BACK INTO ENGLISH

My mother said she couldn't sleep tonight because she needed to finish her homework

INTO JAPANESE

母は宿題を終える必要があったので今夜は眠れないと言った

BACK INTO ENGLISH

My mother said she couldn't sleep tonight because she had to finish her homework

INTO JAPANESE

母は宿題を終わらせなければならなかったので今夜は眠れないと言った

BACK INTO ENGLISH

My mother said she couldn't sleep tonight because she had to finish her homework