Haiku a phrase in the remaining 12 "on" (it may not be apparent from the English translation of the Issa that the first five "on" mean "Edo's rain"). In comparison with English verse typically characterized by syllabic meter, Japanese verse counts sound units known as ""on"" or morae. Traditional haiku consist of 17 "on", in three phrases of five, seven and five "on" respectively. Among contemporary poems "teikei" ( fixed form) haiku continue to use the 5-7-5 pattern while "jiyuritsu" ( free form) haiku do not. One of the examples below illustrates that traditional haiku masters were not always constrained by
Haiku stimulated the writing of haiku in English. The Japanese-American scholar and translator Kenneth Yasuda published "The Japanese Haiku: Its Essential Nature, History, and Possibilities in English, with Selected Examples" in 1957. The book includes both translations from Japanese and original poems of his own in English, which had previously appeared in his book titled "A Pepper-Pod: Classic Japanese Poems together with Original Haiku". In these books Yasuda presented a critical theory about haiku, to which he added comments on haiku poetry by early 20th-century poets and critics. His translations apply a 5–7–5 syllable count in English, with the first and