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
Poetry calligraphy. These basic units of poetic form are often combined into larger structures, called "poetic forms" or poetic modes (see following section), as in the sonnet or haiku. Poetry is often separated into lines on a page. These lines may be based on the number of metrical feet, or may emphasize a rhyming pattern at the ends of lines. Lines may serve other functions, particularly where the poem is not written in a formal metrical pattern. Lines can separate, compare or contrast thoughts expressed in different units, or can highlight a change in tone. See the article on line breaks