Hello, I'm an expert in the field of Pokémon, and I'd be happy to help you with your question about Smeargle and its ability to learn TMs (Technical Machines).
Smeargle is a unique Pokémon in that it can learn a wide variety of moves through a special ability called "Skill Swap" or by using a move called "Sketch." However, this doesn't mean that Smeargle can learn any TM. In the context of the games, Smeargle has a limited move pool and cannot learn every TM move directly through the typical methods.
**Smeargle's ability to learn TMs is restricted to those it can Sketch.** Sketch is a one-time use move that allows Smeargle to permanently copy an opponent's move, regardless of type, into its move set. Once Sketched, that move replaces Sketch in Smeargle's move set. However, Sketch can only be used once per battle, and Smeargle can only hold one Sketched move at a time.
In the mainline Pokémon games, TMs are single-use items that teach a specific move to a Pokémon that it might not typically learn through leveling up or other means. Since Smeargle cannot learn every move through leveling up, and it doesn't have the ability to learn moves from TMs directly, it must rely on Sketch to acquire moves that are not part of its learnable set.
To summarize, **Smeargle cannot learn TMs in the traditional sense**, but it can acquire the effects of a TM move through the use of Sketch.
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