ずにはすまない/ないではすまない => A must be done N1
Potential, Possibility
あまり~ない => Not very ~ N5
Amount
てもかまわない => No problem N4
Can, Should, Must
までもない => It's not necessary for A N1
Need/Requirements
ないまでも => Even if A isn't done N1
(Not)only , (Not) even
てやまない => To (always) think/feel/hope/etc. A N1
Will, Decision, Doing
[極「きわ」]み/[極「きわ」]まりない => Extremely A N1
Degree/ Level/Amount
だけではすまない => Doing A is not going to suffice N1
Miscellaneous
[全「まった」]く~ない => Not A (at all; even a little bit) N3
Not only, Not even
てたまらない => Very A; Extremely A; Really want to do A N2
Degree, Level, Amount
うと~まいと,うが~まいが => Whether or not A (is/occurs) N1
Based/focused/depending on
ずじまい => Haven't done A N1
Will, Decision, Doing