[少「すこ」]しも~ない => Not (even a little) A N3
Not only, Not even
だけではすまない => Doing A is not going to suffice N1
Miscellaneous
~ます/~ません => Polite, present form N5
Verb suffixes
だけましだ => Although A, B is (still) true (and is good) N2
Contrast,Surprise
ことにする => Decide to N4
Causative, Passive, Volitional
ずにはすまない/ないではすまない => A must be done N1
Potential, Possibility
おまけに => A. In addition, B N2
(Not)only, (Not) even
~ました/~ませんでした => Polite, past form of verb N5
Verb suffixes
ござる/ございます => Have~ N4
Honorifics
させて[頂「いただ」]きます/させてもらいます => Allow me to A N1
Miscellaneous
てしまう => Did something N4
Secondary Verb
までだ/までのことだ => Only A (will be done) N1
(Not)only , (Not) even