an unrhymed lyric poem of three lines of five, seven, and five syllables. It usually includes an image from nature.
consists of five unrhymed lines of five, seven, five, seven, and seven syllables. It includes simple, straightforward images.
a fourteen-line poem written in iambic pentameter (five unaccented syllables each followed by an accented one).
a lyric poem written in three-line stanzas and ending in a four-line stanza. It has two refrains formed by repeating line 1 in lines 6, 12, and 18 and line 3 in lines 9, 15, and 19.