1. Consonant-Vowel (CV): This is the most basic syllable structure, consisting of a single consonant followed by a vowel. For example, the word "at" has a CV syllable structure.
2. Vowel-Consonant (VC): This syllable structure consists of a vowel followed by a single consonant. For example, the word "it" has a VC syllable structure.
3. Consonant-Vowel-Consonant (CVC): This syllable structure consists of a consonant followed by a vowel and then another consonant. For example, the word "cat" has a CVC syllable structure.
4. Consonant-Cluster-Vowel (CCV): This syllable structure consists of a cluster of two or more consonants followed by a vowel. For example, the word "stop" has a CCV syllable structure.
5. Vowel-Consonant-Cluster (VCC): This syllable structure consists of a vowel followed by a cluster of two or more consonants. For example, the word "last" has a VCC syllable structure.
6. Diphthong: A diphthong is a syllable that contains two vowels that blend together smoothly within the same syllable. For example, the word "boy" has a diphthong in the "oy" sound.
7. Triphthong: A triphthong is a syllable that contains three vowels that blend together smoothly within the same syllable. For example, the word "fire" has a triphthong in the "ire" sound.
It's important to note that syllable structure can vary based on the pronunciation and phonetic rules of different languages. Additionally, the syllable structure of a word can influence its stress pattern and pronunciation.