Comparative Analysis of English and Uzbek Phoneme Systems. Vowel Systems. Consonant Systems. Suprasegmental Features. Phonemes are the smallest units of sound. English Vowels. Phoneme Systems. Monophthongs. Diphthongs.  Uzbek Vowels. vowel phonemes.  Stress-timed language. Intonation and stress. Pitch and rhythm. vowel harmony