The words yellow, yes, yawn are examples when the sound of y is a consonant sound, it sounds more like /yeh/. If the letter y is at the beginning of the word, it is a consonant. It is when y follows another vowel or is at the end of the word that has a vowel sound. For example, the word ‘hey’ the ‘ey’ says a long a and it is the combination of the two letters. In the word ‘sky’ the y has a long i sound. Happily ends with a long e sound. Just remember if the y is at the beginning it will be a consonant, if it follows another vowel or is the only letter in the word that could be a vowel, it is a vowel.