Sauron - Physical form in The War of the Ring or not?

ok, first...Eärendil, great name and character. and 2nd, Sauron did have a physical form, before and after the ring. it is like Morgoth changing form in order to fit his liking (ex. becoming a dark knight (or whatever u wanna call it) when dealing with Ungoliant); thus Sauron could also take shape, or form (ex. wolf Sauron, mouth of Sauron, and the eye of Sauron). when in battle during the last alliance, he would take shape like the 'black knight' that Morgoth had once taken. but after the one ring had been cut off, Sauron only had "4 fingers on the black hand". but, when needing enough power to take physical shape again, he said that 9 fingers were not enough, and that he wanted all 10 (thus implies that he really really really wanted his ring finger back). but, he never fully regained physical form...i think, lol...because the ring was destroyed before he could finish...