とは[限「かぎ」]らない => Its not really A N2
Information, Report
~ました/~ませんでした => Polite, past form of verb N5
Verb suffixes
ではあるまいし => It's not like A, it isn't as if A N1
Reason, Result, Response
てしまう => Did something N4
Secondary Verb
に[反「はん」]して/に[反「はん」]し/に[反「はん」]する/に[反「はん」]した => In contrast to A N2
Contrast,Surprise
まだしも => A is acceptable, N2
Comparison, Exchange
ずにはすまない/ないではすまない => A must be done N1
Potential, Possibility
しまつだ => Denotes negative results A N1
Reason, Result, Response
かぎり/ないかぎり => While A is the case/still true N2
Conditional, While
~ましょう。 => Let's (together), Shall I/we…? N5
Verb suffixes
かぎりだ => Very A N1
Degree/ Level/Amount
に[限「かぎ」]って/に[限「かぎ」]り => Only A (A is a special condition) N2
(Not)only, (Not) even