YOU SAID:
I'll start my homework after I beat this video game
INTO JAPANESE
私はこのゲームを破った後に宿題を始めます
BACK INTO ENGLISH
I will begin my homework after I defeat this game
INTO JAPANESE
私はこの試合を敗北させた後、宿題を始めるでしょう
BACK INTO ENGLISH
I will begin my homework after I defeat this game
That didn't even make that much sense in English.