Grammar notes 47

Female endings include, but are not limited to (の｜もの｜わ), male endings include but are no limited to (だい｜のこ｜なあ).

A colloquial equivalent to いけない and ならない can be to replace it with だめだ.

わけにはいかない is a phrase appended at the end of a sentence meaning "it's impossible to ...". わけではい is a similar phrase meaning "it's not a case of ...".