Sadly, no you cannot go to other previous regions except for Unova. Although, some characters in the games (B&W) tell you that they are from other regions. They are really trying to say that the want you to play the PREVIOUS poke`mon games as well as the new ones.
there are no other regions in Pokemon black or white.
NO
White Forrest has a very limited selection of Pokemon from past regions. It is advised that you get the Pokemon via Poke Transfer.
of course not . Unova region is not connected with any other regions
There are non.
Nope.
Pokemon Black and White take place in the new region of Unova. Just as the old regions like Kanto and Sinnoh are based on Japanese prefectures, Unova is based on New York City. You cannot visit any other regions in Black/White.
You cannot go to any other regions in Pokémon Black.
Nope, there is no way to go to other regions in "Pokémon Black or Pokémon White" by plane.
Yes,you have to go to the city where all the skyscrapers are and go onto the black boat.
Pokemon White, and other copies of Pokemon Black.
Pokemon Black only takes place in the Unova Region.