YOU SAID:
A man went to the store to buy some milk
INTO JAPANESE
ある男が牛乳を買うために店に行きました
BACK INTO ENGLISH
A man went to a store to buy milk
INTO JAPANESE
男が牛乳を買うために店に行きました
BACK INTO ENGLISH
A man went to a store to buy milk
That didn't even make that much sense in English.