んです => Because, by… N4
Situations and Experiences
いかんでは,いかんによっては => Considering A, depending on A N1
Based/focused/depending on
~ました/~ませんでした => Polite, past form of verb N5
Verb suffixes
たとたん => As soon as A (occured), B N3
Time, Situation
もなんともない => Not A at all N1
Adjectival, Descriptions
でなくてなんだろう => It's definitely A (and not something else) N1
Information, Report
[後「あと」]で => After V1, V2 N5
Time
てとうぜんだ => A is common, natural, not surprising N2
Adjectival, Descriptions
であれ,であろうと => Even A, Both A and B N1
(Not)only , (Not) even
までだ/までのことだ => Only A (will be done) N1
(Not)only , (Not) even
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
と([思「おも」]う、[言「い」]う、[考「かんが」]える) => That A N4
Particles