Sonnet 41 three sonnets (40, 41, 42) that dwell on this betrayal of the speaker. This sonnet is also notable for the textual references made to Shakespeare's other works. The sonnet is written in the typical Shakespearean sonnet form, containing 14 lines of iambic pentameter and ending in a rhymed couplet. Shakespeare's sonnets conform to the English or Shakespearean sonnet form. The form consists of fourteen lines structured as three quatrains and a couplet, rhyming "abab cdcd efef gg" and written in iambic pentameter, a type of poetic metre based on five pairs of metrically weak/strong syllabic positions. While Shakespeare's versification maintains
Sonnet introduced, such as CDCDCD. Petrarch typically used an ABBA ABBA pattern for the octave, followed by either CDE CDE or CDC CDC rhymes in the sestet. The symmetries (ABBA vs. CDC) of these rhyme schemes have also been rendered in musical structure in the late 20th century composition "Scrivo in Vento" by Elliott Carter, inspired by Petrarch's Sonnet 212, "Beato in Sogno".) In English, both the English or Shakespearean sonnet, and the Italian Petrarchan sonnet are traditionally written in iambic pentameter. The first known sonnets in English, written by Sir Thomas Wyatt and Henry Howard, Earl of Surrey, used the