[切「き」]れない => Can't finish/complete A N3
Potential, Possibility
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”
にひきかえ => In contrast to A N1
Comparison/ Exchange
[使「し」][役「えき」] => Coercive, permission, allow, make N4
Causative, Passive, Volitional
[極「きわ」]み/[極「きわ」]まりない => Extremely A N1
Degree/ Level/Amount
ていられない => Cannot continue to A N2
Needs, Requirements
を[禁「きん」]じ[得「え」]ない => Can't help but do A, can't hold back from A (emotional response to something) N1
Will, Decision, Doing
[使「し」][役「えき」][受「う」]け[身「み」] => Imperative N4
Causative, Passive, Volitional
なければならない => Must do A; have to A N4
Can, Should, Must
てばかりはいられない => Cannot always A N2
Needs, Requirements
にたえる/にたえない => Can't do A, can't stand/tolerate A, Can do A, N1
Potential, Possibility
~かもしれない => Might A, maybe A, perhaps A N4
Sentence Endings