YOU SAID:

But thou must needs be sure

INTO JAPANESE

しかし、あなたは確かな必要があります

BACK INTO ENGLISH

but you must be sure

INTO JAPANESE

しかし、あなたは確信しなければなりません

BACK INTO ENGLISH

but you have to be sure

INTO JAPANESE

しかし、あなたは確信しなければなりません

BACK INTO ENGLISH

but you have to be sure