Egg Moves cannot be relearned if the player chooses to forget them.

in fact, How do you relearn a move in Pokémon Platinum?

The move deleter can be found in the house just south of the Canalave City Pokemon Center. The move maniac can be found in the house by the water in Pastoria City. He will teach a move that your Pokemon will have learnt at an earlier level if you give him a Heart Scale.

for instance, Can a move tutor teach egg moves?

In other words, if a Pokemon is hatched with an egg move but forgets the move later on, the Move Relearner can reteach that egg move.

indeed How do you beat egg moves on a sword? As long as one of the parents have the Egg Move, it will be passed down to the offspring. Another new feature introduced in Sword and Shield is Egg Moves being passed through parents. If you have one parent who has the Egg Move, it can pass it on to the other if they are both left at the same Day Care Center.

What does Eevee breed with?

Smeargle is in this group, so you could Sketch the move onto him (from a double battle with Smeargle and your Shadow Ball pokemon) then breed for an Eevee.

Can move tutor teach pre evolution moves?

Move Reminders are restricted to teaching a Pokémon only moves that its species can learn; they cannot teach moves exclusive to an earlier evolution. In particular, many Pokémon that evolve by evolutionary stone have a very restricted set of learnable moves in their evolved forms compared to their unevolved forms.

How many shards is thunder punch platinum?

You need eight shards (the number of each depends on the move you want) and a Poke that is actually capable of learning a move. Shards are those little squares that you dig up in the underground. The ones that you traded in for the weather TMs in D/P.