Indefinite Articles

Indefinite articles are usually placed before singular countable nouns, noun phrases and adjectives.

There are two indefinite articles a/an and we choose which to use according to the first letter of the following word (consonant or vowel):

• A: when a noun starts with a consonant (b, c, d, f, g, j, k…);
• An: when a noun starts with a vowel (a, e, i, o, u) or h that is not pronounced.