YOU SAID:

I need to go to the store and buy some ham and cheese

INTO JAPANESE

店に行ってハムとチーズを買う必要があります

BACK INTO ENGLISH

I need to go to the store and buy ham and cheese

INTO JAPANESE

店に行ってハムとチーズを買う必要がある

BACK INTO ENGLISH

I need to go to the store and buy ham and cheese