YOU SAID:

Everyday I walk down to the store to buy some milk because we run out a lot.

INTO JAPANESE

ミルクが足りなくなったので、毎日店に歩いてミルクを買いに行きます。

BACK INTO ENGLISH

I'm running out of milk, so I walk to the store every day to buy milk.

INTO JAPANESE

ミルクが足りなくなったので、毎日店に歩いてミルクを買います。

BACK INTO ENGLISH

I'm running out of milk, so I walk to the store every day to buy milk.