Sr.No.Construct & Description1The loop construct is the simplest form of iteration provided by LISP. Click the following links to check their detail. A loop statement allows us to execute a statement or group of statements multiple times and following is the general form of a loop statement in most of the programming languages.LISP provides the following types of constructs to handle looping requirements. There may be a situation, when you need to execute a block of code numbers of times.