てもかまわない => No problem N4
Can, Should, Must
わけにはいかない => Must not A, Must A N3
Needs, Requirement
わけではない => Although you may think A, that is not the case. N3
Contrast
というものではない => Not sure, not means N2
Information, Report
[極「きわ」]み/[極「きわ」]まりない => Extremely A N1
Degree/ Level/Amount
ないものでもない/ないでもない => A is not completely impossible N1
Need/Requirements
てかなわない => A is a problem N2
Adjectival, Descriptions
ずにはおかない/ないではおかない => Will definitely A, N1
Will, Decision, Doing
ずにはすまない/ないではすまない => A must be done N1
Potential, Possibility
とはくらべ[物「もの」]にならない => It's no match for A N1
Comparison/ Exchange
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”
もなんともない => Not A at all N1
Adjectival, Descriptions