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Form in poetry

Poetic form is more flexible in modernist and post-modernist poetry and continues to be less structured than in previous literary eras. Many modern poets eschew recognizable structures or forms and write in free verse. Free verse is, however, not "formless" but composed of a series of more subtle, more flexible prosodic elements. Thus poetry remains, in all its styles, distinguished from prose by form; some regard for basic formal structures of poetry will be found in all varieties of free verse, however much such structures may appear to have been ignored. Similarly, in the best poetry written in classic styles there will be departures from strict form for emphasis or effect.

Among major structural elements used in poetry are the line, the stanza or verse paragraph, and larger combinations of stanzas or lines such as cantos. Also sometimes used are broader visual presentations of words and calligraphy. These basic units of poetic form are often combined into larger structures, called poetic forms or poetic modes (see the following section), as in the sonnet.