Sonnet 30 The lines "from woe to woe tell over" suggest a kind of metaphor in which Shakespeare's woes and failings are like an account book that he reads through over and over. The word "heavily" before these lines also suggests that Shakespeare's reads this "account book" in a painful manner. Finally, the fact that words “fore-bemoaned moan” that come close on the heels of the words "grievances foregone" before it also suggest that Shakespeare is continuously reviewing his past sorrows . The couplet of the sonnet consists of lines 13 and 14, and they seem to be used to clinch the
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