Do-baytī (which, however, is very close to standard Persian). An example of one of his poems is the following: Do-baytī Do-bayti () (literally "two-couplet"), also known as "fahlaviyat", is an ancient form of Persian poetry. It is used to describe a Persian quatrain (a stanza or poem of four lines), similar to Ruba'i but different in meter. A "do-bayti" has four half-lines of 11 syllables each, and usually uses the "hazaj" meter: The first two syllables may sometimes be replaced by – u or – –. The rhyme scheme is "a a a a" or "a a b a". A well-known
Metre (poetry) metrical patterns are made of long and short syllables, much as in Classical Greek, Latin and Arabic. "Anceps" positions in the line, however, that is places where either a long or short syllable can be used (marked "x" in the schemes below), are not found in Persian verse except in some metres at the beginning of a line. Persian poetry is written in couplets, with each half-line (hemistich) being 10-14 syllables long. Except in the ruba'i (quatrain), where either of two very similar metres may be used, the same metre is used for every line in the poem. Rhyme is