Complex sentence: Sonnet 26 is a typical English or Shakespearean sonnet, formed of three quatrains and a couplet, having a rhyme scheme of "abab cdcd efef gg".
Split into simpler sentences: Sonnet 26 is a typical English or Shakespearean sonnet. The poem has seven rhymes--three rhyming quatrains and a couplet, forming a rhyme scheme of "abab cdcd efef gg".