Can Rotom switch between forms?

Question

i found a raid den with Rotom wash but I want Rotom heat is it possible to turn Rotom wash into Rotom heat?

Comments

I'd honestly be shocked if there wasn't a place to change it's form.  Every game since Rotom was added had one.

Answer 1

In one of the apartments in Wyndon, you can obtain a Rotom Catalog by battling a league member.

Source: Experience and Bulbapedia