The main purpose of this thesis is to study the sound, words and sentences in 
the Chong language of Ban Thung – Ta – In, Tambon Phluang, Amphoe 
Makham, Changwat Chanthaburi. The analysis is based on the speech of two 
Chong informants whose age is about 50-60 years old.

The findings of this study are as follows: there are nine types of syllabic 
structure and four registers (four combinations of phonation types and 
pitches). There are eighteen long and short single vowels and three 
diphthongs. There are twenty-one initial consonant phonemes, twelve final 
consonant phonemes, eleven initial cluster phonemes. Most of the Chong 
words are found to be monosyllabic and disyllabic. Most of formation of words 
in the Chong language is compounding. There are three classifications of 
Chong sentences : the statement, the imperative and the interrogative. All are 
formed in the SVO order.