
If the next word starts with a vowel sound (a, e, i, o, u) ➡️ we use an
If it starts with any other letter (consonant sound) ➡️ we use a

If the next word starts with a vowel sound (a, e, i, o, u) ➡️ we use an
If it starts with any other letter (consonant sound) ➡️ we use a