いまさらながら => Still ... now N3
Time
もさることながら => one may well say so, but~; not only... but also ~ N1
さすがの...も => even ~also N2
The highest (comparative) level
...が ...なら ...も ...だ => ... Anyway... whatever N2
Criticize
ながら(も) => but; although; despite ~. N2
もさることながら => While A is (true), B also; A is one thing, but B (as well) N1
Conditional, While
ながら(も) => Although A, B N2
Contrast,Surprise
なさる => to do (honorific) N4
さすがに => understandably N2
Base, base
させてください/させてもらえますか/させてもらえませんか => please let me do N3
[事「こと」]ができる => Be able to A; can do A, Can A; be possible to A; N4
Causative, Passive, Volitional
てもらえるとありがたい => grateful, thankful if... N4
Emphasize