[Unanswered]  How do combos work, and how do you identify parts and say combos?

I'm still kind of new to competitive beyblade, but I do know that making combos are very important. But how do say combinations, part names, and if they work?
The wiki is your friend for naming conventions: https://beyblade.fandom.com/wiki/Main_Page

As for performance, the Winning Combinations at the WBO thread is a good place to see what's trending in the meta. Eventually you just get a feel for which parts are good or not based on the shape, the weight, the contact points, etc. You know what works or not based on experience.