[中心「ちゅうしん」]に => With A as the center N2
Miscellaneous
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
~ましょう。 => Let's (together), Shall I/we…? N5
Verb suffixes
そうにない => N2
Potential, Possibility
でしょう => I think... Probably.., I wonder if... N5
Miscellaneous
にしたら => From A's perspective, N2
Considering, Concerning
[使「し」][役「えき」][受「う」]け[身「み」] => Imperative N4
Causative, Passive, Volitional
[際「さい」]して/に([際「さい」]し)/に[際「さい」]しての => At the time of A (which starts now).. N2
Time, Situation
なしに => Without A, without doing A N1
Conditional, While
てしょうがない/てしかたがない => Very A; Really A; Extremely A N2
Degree, Level, Amount
ことなしには => Without doing A, B N1
Conditional, While