Welcome to the forums, Marston! I'm sure you'll get the assistance you need, and don't worry about your English skills. We have loads of others like you in that regard so you're not on your own.
As Dragon suggested, the Trade Corner section seems like the place for you. It's one of the most-visited sections by new members and with X and Y's new mechanics it's getting busier than ever. Both the trade shops and the quick trade threads should have the one Pokemon you're in need of, and the regulars in the section are always on hand to assist you. Feel free to check out the rest of the forums if you need a break from all that trading, because we're a diverse community with so much to keep you busy.
Well, I hope you stick around and do make some new friends with the friendly people here. I'm not a trader, but hey doesn't stop me from chatting with you so feel free to leave me a visitor message, and see you around Marston!
- Hikamaru