21. The song of the Bengal bush lark is a repetition of thin disyllabic notes, delivered in a song-flight. 22. These are mostly words that were monosyllabic in Old Norse, but have subsequently become disyllabic , as have many loanwords. 23. In general, a noun stem will contain from one to three syllables; out of these disyllabic are most common. 24. In most native disyllabic words, the first syllable is a compounds, but some are single morphemes ( generally loanwords ). 25. There is a tendency for words to have two syllables ( disyllabic ) with perhaps 80 % of the lexicon being disyllabic. 26. There is a tendency for words to have two syllables ( disyllabic ) with perhaps 80 % of the lexicon being disyllabic . 27. One Vietnamese linguist has considered an inserted vowel element in certain " dramatic " reduplications of disyllabic words to be an infix. 28. The larger Tai-Kadai family is reconstructed with disyllabic words that ultimately collapsed to monosyllabic words in the modern Tai languages. 29. As the names of many Vietnamese letters are disyllabic , it would be less convenient to pronounce an initialism by its individual letters. 30. Since all verbs are required to have two syllables, a meaningless prefix must be added to the verb to fulfill the disyllabic requirement.
