How do you get to route 119 in Pokemon Emerald without beating Norman?

You cannot reach Route 119 in Pokemon Emerald without defeating Norman, the Gym Leader of the Petalburg Gym.

Here's why:

* Route 119 is located directly after the Petalburg Gym. You must first defeat Norman to gain access to this route.

* The route leads to Slateport City. This is the next major city in the game, and you cannot reach it until you defeat Norman.

Therefore, it is impossible to get to Route 119 in Pokemon Emerald without first defeating Norman.