It is important to try and get a constitution that actually reflects the way in which you want to do things. There is no point in lumbering yourself with a lot of bureaucracy you don’t want, or writing down loads of things you don’t intend to do, simply because you think they are what people expect.
Constitutions usually cover the following areas. Discuss each of these with your group, and take notes. The decisions you make will help you write your constitution.