YOU SAID:
I should get up and cook dinner.
INTO JAPANESE
私は起きて夕食を作るべきだ。
BACK INTO ENGLISH
I should get up and make dinner.
INTO JAPANESE
私は起きて夕食を作る必要があります。
BACK INTO ENGLISH
I need to get up and make dinner.
INTO JAPANESE
私は起きて夕食を作る必要があります。
BACK INTO ENGLISH
I need to get up and make dinner.
That didn't even make that much sense in English.