In each game( without cheats) eevee is only compatible once,except for two games I know of,in hgss,you can find one from bill,and one in celadon's building.in the new b2 and w2,you don't receive eevee, you can catch eevee!( in castelia) otherwise,breed eevee,trade eevee or spin.hope I helped!
You put any evolution of an evee with another evolution of an evee in the Day Care Center. Wait a while and you'll find an egg when you talk to the day care man. If you don't know where to get 2 evee's get one in the trophy garden and 1 from Bebe. (Or 2 in the trophy garden). Then evolve them with elemental stones and breed them.
If you breed a evee you will get an egg when it hatches it will be evee this is a great way to get all the forms of evee.
Well go to hearthome city i think you must have hearthome's badge first but.... back to topic go to bebe's home and she'll give you an egg and in that egg will be evee. you can duplicate it by combining evee and ditto in the day care and i think that is the only 2 ways to get an evee, unless you use cheat!
Evee is given to you in Celadon Mansion.
Evee + Ditto in daycare
hatch from egg breed in day care evee and ditto
Castelia Gardens found through its Sewer System.
To get vaporion give evee a water stone.to get flerion give evee a fire stone. to get joltion give evee a thunther stone and that is all for Pokemon leaf fire and and water
go to the trophy garden south of hearthome speak to mister backlot and he will tell that an evee snogged him. go out to the gardens and catch your evee. you can get an evee from bebe once you have the national pokedex
EVEE evolves at level 15
You level up evee in eterna forest
no you can not catch evee in pokemon yellow but someone will give it to you