I want to complete the Pokédex, how do you see all the starters? I know you see all your starters evolutionary line (if you choose to evolve it), your rival's and the second form of Bianca's but not her other two.
No, unfortunately you will have to trade.
To see all nine evolutions of the Gen V starters, you will need to trade and breed in order to get all nine Gen V starter evolutions registered in the Pokedex.
Hope I helped. :)