It's been stated that Sharingan only copies Taijitsu, and ninjitsus/genjitsu's that use hand seals. With the kyubi power, theres nothing to "copy" because with out the fox you simply can't do that. Even with the taijitsu that Naruto is using now, even if Sasuke knows HOW to do it, he's incabably because it requires the fox to fight like that. Same with the Rasengan, Jiraya says theres no seals to it, so you can't copy it, its just manipulating chakra with your will.

Even if Naruto were to summon a frog, Sasuke couldn't copy that because he hasn't signed the frog contract, or any other contract, so he can do the move, but nothing would show up.

In fact, pretty much the only move of naruto's that Sasuke hasn't copy, but could have is the Mass Kage Bunshin. And Sasuke probably thinks its not worth using on Naruto, since it never works when Naruto uses it lately.