YOU SAID:
I need to go to the store and buy bread
INTO JAPANESE
私は店に行ってパンを買う必要があります
BACK INTO ENGLISH
I have to go to the store and buy bread.
INTO JAPANESE
私は店に行ってパンを買わなければならない。
BACK INTO ENGLISH
I have to go to the store and buy bread.
You've done this before, haven't you.