A or An

L.I.To use “a” in front of words beginning with consonant sounds (the opposite of vowel sounds).To use “an” in front of words beginning with a vowel sound (a, e, i, o, u). I learnt how to use "a" in front of words beginning with consonant sounds and vowel sounds.I learnt how to fix sentence's and put "a" or "an" in front of the words.