Poetry have challenged the traditional definitions of the sonnet form, rendering entire sequences of "sonnets" that often lack rhyme, a clear logical progression, or even a consistent count of fourteen lines. "Shi" () Is the main type of Classical Chinese poetry. Within this form of poetry the most important variations are "folk song" styled verse ("yuefu"), "old style" verse ("gushi"), "modern style" verse ("jintishi"). In all cases, rhyming is obligatory. The Yuefu is a folk ballad or a poem written in the folk ballad style, and the number of lines and the length of the lines could be irregular. For the
Sonnet 10 a different form. Sonnet 10 is a typical English or Shakespearean sonnet. The English sonnet consists of three quatrains followed by a couplet, and follows the typical rhyme scheme of the form: "". It is written in iambic pentameter, a type of poetic metre based on five pairs of metrically weak/strong syllabic positions per line. Line ten exemplifies a regular iambic pentameter line: ...while the first two lines exhibit, respectively, a final extrametrical syllable (or "feminine ending"), and a likely initial reversal: Though this is not the only possible scansion of the first two lines, the extra emphasis demanded by