ても、~でも => Even if A N4
Conditional
ないものでもない/ないでもない => A is not completely impossible N1
Need/Requirements
それでも => Even though A, B N2
Contrast,Surprise
までもない => It's not necessary for A N1
Need/Requirements
ないまでも => Even if A isn't done N1
(Not)only , (Not) even
もしないで => Even though (subject) doesn't/don't A N1
Contrast/Surprise
でも => Any A (anywhere, anybody, anytime, etc.), Even A, A or something N4
Particles
というものではない => Not sure, not means N2
Information, Report
でも[差「さ」]し[支「つか」]えない => It's OK if A, it doesn't matter if A N1
Need/Requirements
で => At,in,by... N5
Particles
でござる/でございます => By, with… N4
Honorifics
んです => Because, by… N4
Situations and Experiences