Expressions (phrases, clauses, etc.)
cannot help (feeling); unbearably; awfully; irresistibly
as ...てならない
気になってならない俺は思わず、目の前の学生に聞いてしまった。It was on my mind so much that I unthinkingly asked the pupil in front of me. must not ...; should not ...
as ...てはならない
must ...; have to ...; ought to ...
as ...なくてはならない, ...なければならない, ...ねばならない, etc.
cannot; unable to
not
Dated termas ...ではならない
Also written ならぬ、ならん、なりません