The most common spellings for vowels
We have over 19 vowel sounds, but only 6 vowel letters to spell them -
a e i o u and y
Many people have tried many different ways to spell vowel sounds in words, but this has made the mix-up worse.
Vowels at the end of words are often spelled differently. See vowel system
And see chart of many ways to spell vowel sounds and sound out vowel spellings