~いざ~となると / いざ~となれば / いざ~となったら => When it comes to; in such a case; if that happens N1
Evaluate
ござる/ございます => Have~ N4
Honorifics
べからざる => Cannot A N1
Potential, Possibility
ざる => B that doesn't/isn't A N1
Adjectival, Descriptions
でござる/でございます => By, with… N4
Honorifics
~たると ... たるとをとわず => regardless of; irrespective of; no matter~ N1
Simultaneously
... るとか ... るとか => それとも... または N4
Demonstrate by example
~いざとなると => when it comes to; in such a case; if that happens N1
Situation, case
~べからざる => must not; should not; do not ~ N1
Confirm
ときているから/ときているので => because of ~ N1
てみると => try doing..., then ~ N4
Base, base
てもらえるとありがたい => grateful, thankful if... N4
Emphasize