くらいだ/ぐらいだ => Around/about N5
Amount
らしい => Seem to~ N4
Sentence Endings
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”
くらいなら => I would prefer (doing) B over A N1
Contrast/Surprise
ていられない => Cannot continue to A N2
Needs, Requirements
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
といえば/というと/といったら => N3
Considering, Concerning
ねばならない => Must A N2
Needs, Requirements
て[以来「いらい」] => After A, B (continuous action/condition N2
Information, Report
ぐらいのものだ => Only A N1
(Not)only , (Not) even
にほかならない => Only A N2
Reason, Result, Response
てならない => Very A; Extremely A N2
Degree, Level, Amount