Go to IMSDb, search for Groundhog Day , and see how Danny Rubin and Harold Ramis made time loops funny on the page. Then get back to writing your own laugh lines. Have a favorite comedy script that helped you learn? Use the sources above to find it, and keep writing.
For aspiring comedy writers, there is no better teacher than the finished script. Whether you dream of writing for Saturday Night Live , crafting the next The Office , or penning a Hollywood rom-com, reading professional comedy scripts is essential. But where can you legally download them? And once you have them, how do you deconstruct the jokes?