There is someone in every game (Move Deleter) talk to him and choose the move (Basic, TM, or HM) and they will forget it.
Usually these people are far into the game so you'll have to wait till you get there.
I cant think on the top of my head where they are all at, so you have to look though all the towns.
Go to the Move Deleter in Canalaeve City. He will make your Pokemon forget any moves and is the only way to forget HM moves. If you want a move back (not including TMs/Hms) go to the Move Relearner in Pastoria City with a Heart Scale, which can be found underground.
The resident Move Deleter will be able to delete it for you. Where the Move Deleter is depends on the Pokemon game you're playing. However, Red, Blue, and Yellow have no Move Deleter - once an HM is taught to a Pokemon in those games, there's no way of deleting it.
Go to Fusia city and next to the poke center are two houses in one or the other there is a man that can delete the hm'S for you.
In Canalave City there is the Move Deleter, he's located on the east side of the city, near the seaside. To delete a HM move you need another pokémon in your party that knows that move.
By forget do you mean replace it or actually forget it.There is a guy somewhere (i forgot where) who can make a pokemon forget a move.
To do this, go to lilycove and go to the house right of the dept. store. The house is of move deleter, which can also forgot hm moves
You must visit the Move Deleter in BlackThorn City.
At the move deleater's house.
The easiest way to for a Pokemon to forget a HM is in Fuishca City. To the left of the Pokemon center are two houses, and in one of those houses, there is a Pokemon Move Deleter. Talk to him, and you can delete ANY move.
There is a move deleter who can make pokemon forget HM moves.
the hm move strength is found in the cave Rusturf tunnel
You can't get rid of HMs in heartgold.
You can just reteach it since HM are reusable.
If by delete a HM you mean get rid of said HM you can't. Otherwise if you want to get rid of an HM move a Pokemon has learned, go to the Move Deleter in Lilycove City. His house is to the left of the Lilycove Department Store.
You can't. The move deleter in Fuchsia city.
You can't get rid of boulders, you can only move them around and that's only with a Pokemon that knows the HM strength.
You can delete HM Moves via the Move Deleter, who is located in Canalave City.
U cant get rid of HM moves in any pokemon game
Go to the move deleter's house in fuschia city.
A HM is a move is a move that can be tought to as many Pokemon as you like but the Pokemon has to be able.
In Fuchsia City, the Move Deleter lives in the house on the left of the Pokemon Center. He can make your Pokemon forget moves, including HM's.Go to fuschia city and head to the Pokemon center but enter the house right to the left of it inside is a guy who calls himself the move deleter choose the Pokemon you want to delete the HM move from choose the HM move and say YES to get rid of it.
Talk to the Move Deleter. He always has a sign outside his house and is in a "Major" city.
He is in canalave city. To get there you need the HM surf. You can get it in celestic town. If you want to delete some moves, be ready to get rid of HM moves.
Yes. Go to Canalcave City and the move deleter will be in the second house to the left of the entrance.
defog is no longer a hm move but if you want to get rid of it go to the place with fog on your birthday