YOU SAID:
your dad went to get milk 15 years ago
INTO JAPANESE
あなたのお父さんは15年前にミルクを飲みに行きました
BACK INTO ENGLISH
Your dad went to drink milk 15 years ago
INTO JAPANESE
あなたのお父さんは15年前にミルクを飲みに行きました
BACK INTO ENGLISH
Your dad went to drink milk 15 years ago
That didn't even make that much sense in English.