[以下「いか」] => Less than A, under/below A (amount) N1
Degree/ Level/Amount
て下さいませんか => Please do A (polite) N5
Asking and Telling
かいもなく => Even though A, N2
Contrast,Surprise
ずにはおかない/ないではおかない => Will definitely A, N1
Will, Decision, Doing
にほかならない => Only A N2
Reason, Result, Response
てもかまわない => No problem N4
Can, Should, Must
ないものでもない/ないでもない => A is not completely impossible N1
Need/Requirements
か~ないかのうちに => Right after A, C N2
Time, Situation
~かもしれない => Might A, maybe A, perhaps A N4
Sentence Endings
かも[知「し」]れない => Might A, maybe A, perhaps A N3
Sentence Endings
わけにはいかない => Must not A, Must A N3
Needs, Requirement
もなんともない => Not A at all N1
Adjectival, Descriptions