 Sonnet 49 is an English or Shakespearean sonnet.The English sonnet contains three quatrains followed by a final rhyming couplet, for a total of fourteen lines.It follows the form's typical rhyme scheme, ABAB CDCD EFEF GG, and is written in iambic pentameter, a type of poetic metre based on five pairs of metrically weak/strong syllabic positions.