Haiku: Which is when you write about one specific moment
generally in nature. It consist of three lines and as many verses
as you care to have. The syllables are 5 for the first line, 7 for
the second line, and 5 for the third and last line. In haiku you
can't tell what your talking about but show it.
Haibun: This is written the same exact way as a haiku three
lines and syllables but in this you have to express the feeling you
had during that moment.
Senyru: This is the same structure as a haiku but is about human
nature usually in a dark way.
Tanka: This is written with 5 lines but in this syllable
pattern: 5-7-5-7-7. A good tanka has one theme through out the
whole poem. The Tanka can have as many verses as needed. When
reading a tanka it's better to have two readers one person reads
the first verse and the second person reads the next one, etc.
Tanka's are usually written about everyday things.
Dodoitsu: This is written about love or humor of the moment. It
is usually not just a poem but can also be sang as a folk song. the
syllable pattern is 7-7-7-5.
Renga: This is a fun competition like poem. You do it with two
people. This has 5 lines per verse and can have as many verses as
you wish. The syllable pattern is the same as a tanka. You do this
by the first person writing two lines in a verse and then the next
person writes the last three lines. It is usually fast moving and
you don't have a lot of time to think.