May I apply for OPT after filing NIW I140?

GC092004

Registered Users (C)
I have F1 visa now and filed NIW based I140 last year. I didn't file I485 since I was not very sure about my case.
Can I apply for OPT before I get any news for my I140? It seems that it will take forever to get the decision in NSC.
Thanks a lot.
 
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