it's a really good topic it's my problem too. excuse me which university do u study? do you have scholarship?

do not worry at all, you will do great;)

Sarah is right! Even in my native language, when I get too nervous during a speech, I make mistakes in my grammar or vocabulary because my mind is racing with so many thoughts! It's best to not worry or rush :) When I have to do presentations in Spanish, I usually write out the speech in my native language, English, then translate it into simple sentences. I have someone correct my mistakes, and then i read the speech over and over. This way, I get used to forming the words, like practicing trabalenguas :) I promise this will make it easier...I can't speak spanish very well, but when I practice speaking aloud over and over, it becomes more natural and my professor says my accent and intonation is very good. Don't be nervous...you will de fine. I have very bad stage fright, but this method has helped me a lot...I have become more confident, and with more presentations and practice, your accent will not be so strong. Although, Americans like cool accents anyway :D

Ha! Yes I am a native English speaker and I make very silly mistakes all the time. I forget words and not just the difficult ones! most I recently called gloves "handles" and shoes "foots". I'd put it forward that most native English speakers have trouble with grammar, and sometimes its pretty bad. The back woods people of the US and Australia are great for this. For example "I been done did that" is classic, and I'm sure you know why that is wrong. Another is "I was sat there waiting for the bus". Basically, what I'm saying is, don't worry about it too much. Most people are forgiving when you are learning a new language and if they aren't, just ignore them. Good luck with your speech.

If it is a presentation, I would just write a speech out (in English) and memorize it. Don't worry too much about your accent. I don't know how strong it is, but a few mispronounced words will not be too terrible. The most important part of a presentation is to appear confident, so practice, practice, practice! And, yes... native speakers will always make mistakes when giving speeches. Most people (in America, at least) don't like to get in front of groups. I'm sure your native-English-speaking classmates are just as nervous as you are!