YOU SAID:
you need to go to the store because i need bananas
INTO JAPANESE
バナナが必要なので店に行く必要があります
BACK INTO ENGLISH
I need a banana so I have to go to the store
INTO JAPANESE
バナナが必要なので店に行かなければなりません
BACK INTO ENGLISH
I need a banana so I have to go to the store
Okay, I get it, you like Translation Party.