| Additionally, in casual speech, adjacent heterosyllabic vowels may combine into diphthongs and triphthongs or even sequences of them. |
| Vowels, diphthongs, triphthongs and consonants are taught using the IPA for the purpose of eliminating regional characteristics in the student's speech pattern. |
| Although Lee and Zee always segmented at C-V and V-C boundaries, they kept diphthongs and triphthongs intact. |
| Alternatively, the formation of triphthongs has been explained by consonant fission. |
| Leaving the triphthongs aside for now, when diphthongs occur, they vary, causing new phonemes to arise. |
| Vowels in different languages and special vowels such as nasal, diphthongs and triphthongs, glides, consonants, legato singing are also reviewed. |
