[命令「めいれい」] => Do A (command) N4
Can, Should, Must
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”
ていられない => Cannot continue to A N2
Needs, Requirements
がっている => Want, like N4
Secondary Verb
っぽい => Seems A; A-ish N3
Adjectival, Description
めったにない => Rarely N3
Degree. Level, Amount
[切「き」]れない => Can't finish/complete A N3
Potential, Possibility
かれ~かれ => A or B N1
Lists, examples
といったらない/といったらありはしない => Extremely A, Very A, A beyond description N1
Degree/ Level/Amount
てばかりはいられない => Cannot always A N2
Needs, Requirements
がっている => Wants to A N3
Will, Decision, Doing
といえば/というと/といったら => N3
Considering, Concerning