[Dizzy]

HI!
I am a second year English student in Bosnia.
today I got a seminar paper to do and the topic is Polite forms in english language
My main problem is that I cannot find books that contain this, and I am not really sure what exactly am I suppose to write about.
I know that there are forms
would you....
could you....
i was wondering if....
Is that all, or is there more forms?

Thank you for all your help.