Learn how to write a sonnet in iambic pentameter, just like Shakespeare did. Discover the rhythm and rhyme scheme of the quatrains and couplets that make up a Shakespearean sonnet. Credit: âSonnet 18,â Â© 2008 Jinx!, used under a Creative Commons Attribution 2.0 Generic license: http://creativecommons.org/licenses/by/2.0/legalcode