YOU SAID:
Nor dares to change the thing he swears,
INTO JAPANESE
彼が誓うことを変えようともしない、
BACK INTO ENGLISH
He will not change what he swears,
INTO JAPANESE
彼は彼が誓うものを変えないでしょう、
BACK INTO ENGLISH
He will not change what he swears,
You've done this before, haven't you.