were/was/am

[Infin1ty]

Hi,everyone.There are three sentences as fellows:

If I was wrong,I apologize.
If I were wrong,I apologize.
If I am wrong,Iapologize.

:shock: which sentence is correct?I'm confused by the different forms of be verbs.Many Thanks in advance.
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Please feel free to correct me if you find any mistakes in my posts.

[Gray]

These are correct:

If I were wrong, I apologize.
If I am wrong, I apologize.

If I am wrong, please do correct me :)

Please note:
Comma should always be followed by a space :)
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First lesson - English, not english. I, not i. ~A student of English

[Esl_Expert]

These are all grammatically possible:

If I was wrong, I apologize.
If I were wrong, I would apologize.
If I am wrong, I apologize.
If I am wrong, I will apologize.

I consider this one to be wrong:
* If I were wrong, I apologize.

[Infin1ty]

Thank you so much for your help, Gray and Esl Expert.Wish you a very nice day : )
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Please feel free to correct me if you find any mistakes in my posts.