YOU SAID:
Why did my dad leave to buy groceries and never came back twenty years ago?
INTO JAPANESE
なぜ私のお父さんは食料品を買うために出発し、20年前に戻ったことはありませんでしたか?
BACK INTO ENGLISH
Why did my father depart to buy groceries and have never returned 20 years ago?
INTO JAPANESE
なぜ父は食料品を買うために出発し、20年前に帰ったことがないのですか?
BACK INTO ENGLISH
Why did my father depart to buy groceries and have never returned 20 years ago?
You've done this before, haven't you.