でも => But... N4
How to say the beginning
でもあり, でもある => is also... N2
Proportional, parallel
でも => Even if ... still N2
~でもなんでもない      => not in the least; nothing like that N1
でもない => neither... nor... N2
Things do not match the prediction
てでも => no matter what N3
Emphasis on degree
でも => or something; how about~ N5
でも => … or something; how about~ N4
Demonstrate by example
あれでも => Even so, ... N3
Surprised
ても、~でも => Even if A N4
Conditional
でも~のに => Even... also..., then... N2
Demonstrate by example
~でもしたら      => If … then N1