In the Vietnamese alphabet, there are:ġ1 single vowels: a, ă, â, e, ê, i, o, ô, ơ, u, ư, y.ģ phonetic pairs with different writings: ia – yê – iê, ua – uô, ưa – ươ. The Vietnamese alphabet consists of 29 letters. The phonology of 29 Letters in Vietnamese Alphabet In the process of change, the final consonants go to change the syllabic endings and the initial consonant moves from mixed unvoiced and voiced consonant to separation. Then, some initial consonants change until now. The appearance of tones began around the sixth century (the northern period in the history of Vietnam) with three tones and stable developed in the 12th century (the Ly Dynasty) with 6 tones.

Later, through the process of interaction with the Chinese language and especially with the linguistic Tai-Kadai language, which has a highly developed tone system, the tone system in Vietnamese appeared and formed as today, according to the rules of tone formation. Haudricourt in 1954, the Viet-Muong language group in the early Christian era was a language or dialect without tone. Vietnamese is a native language derived from the civilization of agriculture, where today is the northern part of the Red River and the Ma River in Vietnam. Vietnamese Alphabet of 29 Letters History of Vietnamese Alphabet Read on to gain a deeper understanding of the Vietnamese alphabet and pronunciation which will be useful for your Vietnam vacation. Therefore, it is quite easy to learn how to write Vietnamese but it is difficult to learn how to speak it out. According to historical documents, Vietnamese alphabet has the root from the Latin on with some addition and deduction of letters.

বর্ণপরিচয় (Barna Poricoy) a book by Iswar Chandra Vidyasagar where he described all the phenomenon of Bangla letters.Vietnamese is the official language of Vietnam spoken by 90% of the Vietnamese people.

Iswar Chandra didn't remove the letter ঌ (Li).

ল্লি can't be pronounced without any letter before it. আধুলী it was looking like আধু৯ called Adhuli. Even more, every word could be pronounced without these letters: অ০, অঃ. Later, Iswar Chandra said there's no use for ৡ and ৠ for a long time. Before Iswar Chandra Vidyasagar, there were 16 letters in Bengali.

Bengali alphabet with pronunciation