It's impossible.
you cant go to sinnoh you have to stay in that regin
You cannot go to the Sinnoh region in Pokemon Black.
Sinnoh.
There isnt any, fool. There are sinnoh pokemon, though.
No. You cannot go to any of the previous regions in this game.
No you can't you stay in Unova glad to answer...Veronica
no
You can't
It is not possible to get to Sinnoh in Pokemon Black 2. (Or any game bar Diamond, Pearl and Platinium)
No.
You can't. After beating N at his castle and obtaining the National Dex, you can catch Pokemon from Sinnoh.
You can't go to Sinnoh in the Gen V games.