ではあるまいし => It's not like A, it isn't as if A N1
Reason, Result, Response
ずにはすまない/ないではすまない => A must be done N1
Potential, Possibility
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
てしまう => Did something N4
Secondary Verb
ては[初「はじ」]めて => Only after A did (I) B N3
Time, Situation
に[決「き」]まっている => A is a given, A must be the case N2
Information, Report
あるいは => A or B N2
Lists, Examples
ござる/ございます => Have~ N4
Honorifics
てまで => To the point of A N2
Degree, Level, Amount
[捲「まく」]る => To do A a lot/incessantly N1
Degree/ Level/Amount
~[前「まえ」]に => Before N/Vる(occurs/happens) N5
Time
をはじめ/をはじめとする => For example, A N2
Lists, Examples