In addition to my question about Rotom's special move, I have mow forme and if you change Rotom's forme, in this case the special move would be Leaf Storm, would you lose the move you HAD to learn to get mow forme without forgetting it. If this is confusing, look at the moveset:
Substitute
Leaf Storm
Overheat
Thunder Bolt
Would you still have Leaf Storm in the moveset even though you change forme and get another special move, Overheat.