No.. People that are skilled without the combos get to know them by asking, noobs that are sucky (I have a feeling this one is..) ask for the combos and get no as an answer =/ They are handy, but ONLY for beating up noobs.. If you want to own someone, combos aren't the way to do it.
Btw, if you're not good you won't be able to perform those combos either =/