Vowels
Y as a vowel
Y is a consonant at the start of a word, as in yes, and a vowel everywhere else. At the end of a one-syllable word it usually says long i, as in dry, and at the end of a longer word it usually says long e, as in bumpy.
The one-syllable versus two-syllable rule covers most of what a young reader will meet, and it is one of the few reliable generalisations in English vowel spelling.
Patterns and example words
Every word below is from the word list Cody generates from, not a hand-picked sample. The count is how many words in that list carry the pattern.
y as in dry
315 wordsmy by really try country why study buy
y as in bumpy
7,224 wordsvery only any many really company country family
y as in gym
1,084 wordssystem systems beyond physical physicals typical grayest typically
y as in yes
952 wordsyou your yours year years yes young younger
Curricula that teach this
Cody generates material against the scope and sequence you already teach. This skill appears in Cody Curriculum, Custom Pattern Selection, UFLI Inspired.
Make a decodable story for this skill
Cody generates stories, word lists and worksheets constrained to the patterns a student has already been taught, so practice on y as a vowel does not smuggle in something they have not met yet.