Vowels are sounds, not letters. [1] Some letters always represent vowel sounds. Some letters never represent vowel sounds. Some letters are the letter Y [1]

Vowels are sounds, not letters. [1] Some letters always represent vowel sounds. Some letters never represent vowel sounds. Some letters are the letter Y [1] https://en.wikipedia.org/wiki/Vowel https://en.wikipedia.org/wiki/Vowel