Sharingan Kakashi, you are just not making any sense. Not even with your grammar.

Now tell me, if you have brown eyes, can you learn to have blue eyes? No.
Can you learn to have green eyes?? NO.
You eyes are brown and that's it. It's got to do with a thing called genes, and you can't fucking alter those some day because you decided it would be cool to have green eyes.

So even in the Naruto world people can't "learn" body attributes. If not so, how come Sakura hasn't "learned" not to have a big forehead? Oh, I know - how come Konohamaru hasn't learned to use the Byakugan? Or Naruto the Sharingan, since he thinks its pretty cool too?
Furthermore, if the Sharingan was learnable, why does Kakashi have it in just one eye? Wouldn't it be logical to have "learned" it with both eyes? Jesus!

Give it up... it's damn obvious that Kakashi got his eye implanted, I mean, we just saw how he lost it!! He even went AGH, MY EYE!!!! and all. He'll need a new eye (unless he can learn to grow a new one, of course) and he'll get a Sharingan eye from some dead Uchiha, 'cause I don't think that any living one would willingly give him one.