A limerick is a five-line poem that is intended to be amusing. The first, second, and fifth lines must be seven to ten syllables long, rhyming, and with the same linguistic rhythm. The third and fourth lines should only contain five to seven syllables each, and they should also rhyme and have the same rhythm. Finally, the poem should have a formal structure that follows the pattern A-B-A. "Where "A' stands for an exclamation or question and ""for a statement. There are many different ways to construct a good limerick. Here are two examples: "The Limerick School was founded in 1614 by Henry VIII who had no other school to go to. It is one of the oldest schools in America." "The word "limerick" comes from the Irish language and means "little ring. It's a fun little poem that people have been writing for hundreds of years. There are many more examples written by famous poets such as Robert Frost, W. B. Yeats, and Oscar Wilde. If you want to write some yourself, here is a good place to start: http://www-lexlib.usc.edu/clk/english/display/limerick.html. Have fun!