The Classification of vowels and consonants in Syllable structure

This study entitled ( The Classification of vowels and consonants in Syllable structures). It is a part of researchers PhD Dissertation entitled ( stress and accent in karkuk sub-dialect). Here, the researcher attempts to clarity and place the vowels and consonants in the structure and positions of those syllable by using tree diagram model the constituent model of classifying syllable structure for this scientific research. In the first model (tree diagram) the vowel (peak) or (nucleus) placed in the middle or center of the syllable under the rhymes and the onset and coda usually placed at the beginning or the end of the syllable. This study consists of an introduction and two parts. The results and conclusions, with the abstract in both English and Arabic languages are presented at the end of the study. In part one is dedicated to the classification of vowels and   consonants in Syllable structure.In the second part, the structure of vowels are clarified however, some basic tenets about consonant clusters at the beginning or  the end of the word is mentioned.The samples and data had proved that it is not possible to have a zero onset and it is also impossible to have more than two consonant clusters initially. At the  same time, in final position, it is possible to have zero coda, but it is impossible to have more than two allowed consonant clusters finally. The peak or nucleus of the Syllable can be either strong or weak Syllable.