All Illinois Courts must accept these forms. The Form Library has court forms, legal documents, and letters for many kinds of legal problems.If you are not a current student at the University of Illinois at Urbana-Champaign or you prefer to do it on your own, you can use the forms in the link above. Listing of fillable court forms. Not sure what form you need to fill out? Check out all the court forms for Clerk of the Circuit of McHenry County. The Champaign County Circuit Clerk's Office provides both paper and electronic court forms for you to use in your case. The Illinois Supreme Court has set out a formal process for the development, review and approval of standardized forms in all areas of law. Click here for instructions. Click to download the file.