When You Have No Choice 余儀なくされる・ずにはすまない

This group covers necessity and rules in formal Japanese. を余儀なくされる means someone is forced into a change; なくしては～ない says something cannot happen without a necessary condition; ずにはすまない and ずにはおかない describe actions that cannot be avoided or will certainly be brought about. んがため expresses a purpose in literary style. べからず is a written prohibition, while に当たらない and には及ばない say something is unnecessary or does not warrant a response. ても差し支えない grants permission. These patterns differ in who has the choice and how formal the statement sounds.

を余儀なくされる is passive: circumstances leave no alternative. It commonly appears in reports about changes, delays, or losses. ざるを得ない, covered in the N2 lesson, instead describes the speaker’s own unavoidable action.

なくしては～ない makes a prerequisite explicit. ずにはすまない describes an action one cannot get away without doing, often due to responsibility; ずにはおかない predicts a result that is bound to happen or a reaction that cannot be suppressed. する changes to せず in these forms.

ても差し支えない is a formal permission: “there is no problem if you do.” には及ばない means there is no need to go that far, while には当たらない says an action or judgment is not warranted. べからず is a stern written “must not.”

Vocabulary