... も ... もない => Not...or not N3
Emphasize
ないものでもない/ないでもない => A is not completely impossible N1
Need/Requirements
なんともおもわない => think nothing of N3
Invariant
~もなにも(~も何も)      => ~ and everything N1
Description
ものもV-ない => is not entirely impossible N4
Emphasize the negative meaning
でもない => neither... nor... N2
Things do not match the prediction
てもどうなるものでもない => It's no use; can't do anything N3
Invariant
...もの (こと) も...ない => Leave it as is N3
Emphasize
もなんともない => Not A at all N1
Adjectival, Descriptions
~もなにもない => nothing; (not) ~ at all; there's no need to ~ N1
Emphasize the negative meaning
ないでもない => is not entirely impossible N2
Emphasize negative meaning
…も…も…ない => nothing; (not) ~ at all; there's no need to ~ N5
Emphasize negative meaning