Japanese pronunciation
（一）、Seion: The Japanese language has only 5 vowels: A, I, U, E, O and proceded by 「k、s、t、n、h、m、y、r、w」to construct the fifty phonogram五十音图(gojuonzu), that is, the "50" symbols or letters and the gojuon are the basic syllables called the Kana. There are 2 kinds, Hiragana and Katakana. Though they are called the 50 symbolsor letters, they are really 46 times 2. The fifty phonogram shows the vertical line called column and the horizontal line called row used for grammatical word endings and particles in Japanese sentences. For example, 愛 ，あい, ai（love）.
（二）、Dakuon: They are written by using 「ka、sa、 ta 、ha 」column plus a diacritical mark （or゛）on the upper right shoulder of each symbol, and there are 20 dakuon totally.，学生, がくせい, gakusei（student）
（三）、Handakuon: They are written by using 「ha」coulumn plus a diacritical mark（or゜）on the upper right shoulder of each symbol, and there are only 5 handakuon. For example,一杯, いっぱい, ippai（one cup）.
（四）、Choon: They are pronounced one more tempo in each Kana, but still exist one syllable. They can be written as a single letter with a macron over them, 「.ˉ」. For example, 兄さん, にいさん, nisan（brother）.

（五）、yoon: The special combination must be represented by using 「ki、shi、 chi、 ni 、hi、 mi 、gi 、ji 、ji、 bi 、pi」in I row plus the symbol of 「ya、yu 、yo」written smaller on the lower right coner. For example, 会社,　かいしゃ, kaisha（company）.

（六）、Sokuon; The double consonant are used by the symbol of 「tsu」written smaller on the right of center. To pronounce, you stop breathing, that is, one syllable is stopped by pronunciation, and than release the breathing, but the sound is pronounced by following syllable. For example, 切手, きって, kitte（stamp）

（七）、Bion: It is represented by 「n」. It can not be constructed by itself and always preceded by any other syllable. For example, 電話, でんわ, denwa（telephone）