You can get the short version.
No and Yes.
Well you'll probably prefer the longer version?

No it's not necessary to mix pain and bondage. Some are only into bondage and not especially into pain. You can of course feel the ropes. But it recesally cannot be considered as real pain. As I'm a bondage lover, I really love to tie girls up, I always use time to make sure that ropes are placed perfect and looks really good. Else it's the knowledge that the girl is totally helpless and in my power.

No pain don't need to be a part of bondage either. It's not exactly necessary to be tied up, to get a spanking, or caning or some nipple fun.

Humiliation! What humilitatin is it with being tied up, except if it's done in public?

But yes it's possible to mix all 3. To receive a whipping, it surely is a good idea to be tied up.
Humiliatin goes with all too. As it's quite humiliating to get a over the knee spanking, as if you are a little girl, until you cry and babble.