Tai Phonology, Tones and Pronunciation
The phonology, tones and pronunciation domain tests your ability to describe Tai syllable structure, distinguish vowel length and final consonants, and identify the tone carried by a written or spoken syllable. It also tests pronunciation explanations, not only translation.
Syllables and tones
Tai varieties spoken in Assam are tonal. Tai Khamti is commonly described with six tones; the other Assam Tai varieties also use contrastive tone, though the number and names vary by variety and by the analysis in your textbook. Tone is lexical: it distinguishes words that have the same consonants and vowels. A Tai syllable can be analysed as initial consonant, optional medial, vowel (short or long), optional final consonant, and tone. Final consonants are restricted: nasals and unreleased stops occur, but final consonant clusters do not. Vowel length is contrastive and must be kept separate from tone.
Worked example
Two written syllables share the same initial and vowel but carry different tone marks. Do not guess from English stress. First identify the initial and vowel, then check vowel length, then read the tone mark, then check the final. Only after all four steps decide which word fits the sentence. If the tone mark is absent, use the unmarked tone value given in your textbook.
Traps
Substituting Assamese or English stress for Tai tone; pronouncing final stops as released English stops; ignoring vowel length; treating tone marks as decoration; and assuming every Tai variety has identical tone categories. Learn each new word with its tone, not as a spelling only.