YOU SAID:
My dad left to do my homework and never came back
INTO JAPANESE
パパは宿題をするために立ち去り、二度と戻ってきませんでした
BACK INTO ENGLISH
Dad left to do his homework and never returned
INTO JAPANESE
お父さんは宿題をするために立ち去り、二度と戻りませんでした
BACK INTO ENGLISH
Dad left to do his homework and never returned
You've done this before, haven't you.