Think of words like "cap" and "cape" where you can add a silent e to the end to change a short vowel sound to a long vowel sound. Find examples for every vowel. Here are a few: not and note, at and ate, cut and cute, bit and bite, pet and Pete.
The vowel sounds are a e i o u. The alphabets between a and e are b,c,d. Then f,g,h are in e and i. But j,k,l,m,n and p,q,r,s,t are between i and o then o and u. If you study this tips you can easy handle this vowel sounds.