YOU SAID:
i am going to the store tomorrow to get some groceries
INTO JAPANESE
明日は食料品を買いに店に行きます
BACK INTO ENGLISH
Tomorrow I will go to the store to buy groceries
INTO JAPANESE
明日は食料品を買うために店に行きます
BACK INTO ENGLISH
Tomorrow I will go to the store to buy groceries
Come on, you can do better than that.