This is a banana.
This is an apple.
Can you spot a difference in the words that come before apple and banana?
When a noun begins with a consonant, we use a. When a noun begins with a vowel, we use an.
Let's remind ourselves of which letters are vowels and consonants.
Consonants:
b, c, d, f, g, h, j, k, l, m, n, p, q, r, s, t, v, w, x, y, z
Vowels:
a, e, i, o, u
There are a few exceptions to this rule.
For example, we use an when the next word begins with a vowel sound, even if the first letter is a consonant. Likewise, we use a if the next word begins with a consonant sound, even if the first letter is a vowel.
Read these two phrases aloud and think about which sounds right.
an hour or a hour
a unicorn or an unicorn
We always say and write an hour as the word sounds like 'our'.
We use a unicorn as the word sounds like 'yoonicorn'.
Ready to practise? Let's go!