before is correct with present perfect

[edmondjanet]

I have passed my degree in 2001.
I passed my degree in 2001. In this sentence, I know second one is correct. But

I have passed my degree before two years. Is this correct in this sentence.
Thank you.

[5jj]

I have passed my degree in 2001. X, in BrE
I passed my degree in 2001.

I have passed my degree before two years. Is this correct in this sentence. NO

Not only is it not correct, it means little.