ないものでもない/ないでもない => A is not completely impossible N1
Need/Requirements
どころではない => Its not A N2
Contrast,Surprise
ないまでも => Even if A isn't done N1
(Not)only , (Not) even
~ないでください => Please don't do~ N5
Asking and Telling
までもない => It's not necessary for A N1
Need/Requirements
ずにはおかない/ないではおかない => Will definitely A, N1
Will, Decision, Doing
もしないで => Even though (subject) doesn't/don't A N1
Contrast/Surprise
ずにはすまない/ないではすまない => A must be done N1
Potential, Possibility
でなくてなんだろう => It's definitely A (and not something else) N1
Information, Report
というものではない => Not sure, not means N2
Information, Report
うではないか/うじゃないか => Let's go A; Why don't we A? N2
Miscellaneous
ずにはいられない/ないではいられない => Can't help but A; A is unavoidable N2
Will, Decision, “Doing”