Will we ever be able to do intergalactic travel?? such as andromeda, pendura ?

Seems unlikely. Even traveling between stars will be difficult enough. Assuming we don't reach lightspeed or figure out a warp gimmick, the most likely way we'll get between the stars is on slow moving ships with cryogenic preservation or self-contained biospheres taking tens or hundreds of years to reach their destinations. To do this to another galaxy would be many orders of magnitude more difficult since no known energy source could last the amount of time it would take. That said, there is a way we might pull it off. In a few billion years, Andromeda is due to crash into the Milky Way! XD