Use the forms of a or an
a and an are also known as articles.
We use a or an when we are talking about something in general, such as a cabbage or an ambulance.
A very good question. Try this:
Use a when the next word begins with a consonant sound:
a potato a chair a child a zebra a football a mermaid a bag of crisps a tricky question
Use an when the next word begins with a vowel sound:
an apple an elephant an igloo an umbrella an orange an incredible plan an unbelievable mistake
Think you know how this works? Look at these words/phrases and decide whether they would need to use a or an:
lemon open door sausage actor actor's left leg fearsome fish accident cat
spoon superb artist awful singer pair of shorts angry elephant enormous nose
Can't remember which letters are vowels and which are consonants? Here's a clue...
You could have a look here to refresh your memory!