The document provides information and examples about English vowel sounds, including:
- 19 vowel sounds are divided into 12 monophthongs, 5 diphthongs, and 2 tripthongs. Learning vowels requires listening carefully and imitating the sounds.
- Examples and phonetic symbols are given for each vowel sound, along with Bangla equivalents for comparison. Practice words demonstrate the various vowel sounds in action.
- Diphthongs and tripthongs are also explained and exemplified. The document emphasizes the importance of correctly pronouncing words after learning the individual sounds.