Instead of trying to re-invent the wheel, I am going to refer you to many quality books on the subject of learning BASIC 2.0. Please consult the Books/Articles Link under the main BASIC 2.0 page. There you will find many books which have a lot to offer.

Or, if you would like, I have assembled a series of Programmers Packages, of which BASIC 2.0 is the first"ProgPackage1", and is a large .zip file (containing what I believe to be the minimal library every programmer for BASIC 2 should have) that you may dowload. Be sure to check out the Books section for anything else that may grab your interest.