YOU SAID:
You should be sad you should be you should be sad you should be you should be you should be
INTO JAPANESE
あなたは悲しくなければならないあなたは悲しくなければならない
BACK INTO ENGLISH
You must be sad you must be sad
INTO JAPANESE
あなたは悲しいに違いないあなたは悲しいに違いない
BACK INTO ENGLISH
You must be sad you must be sad
That didn't even make that much sense in English.