A, an, or the? Articles in English
“A” and “an” are for something mentioned for the first time or any one of a kind; “the” is for something both speakers know. A short guide with examples of when each one is used.
By Aslıgül Aşkın,
Guide: Grammar. Main post: English tenses: all of them in one table
In English, “a” and “an” are used when you mention something for the first time or mean “any one”; “the” is used for something both the speaker and the listener can identify. The choice between “a” and “an” depends on the first sound of the next word, not its spelling.
“A” or “an”?
Use “a” before a consonant sound and “an” before a vowel sound: a book, a cat; an apple, an egg. Because the rule follows sound, “an hour” (silent h) and “a university” (it starts with a “yu” sound) are both correct.
When do you use “the”?
When you mention something a second time: “I saw a dog. The dog was very big.” For things there is only one of: the sun, the moon. When the situation makes it clear which one: “Can you close the door?” (the door of the room you are in).
When there is no article
No article is used when you talk about plural or uncountable things in general: “I like cats.”, “Water is important.” Meal names and most languages and country names usually have no article either: “We have breakfast at eight.”, “She speaks Turkish.”, “I live in Turkey.”
Common mistakes for Turkish speakers
Turkish has no articles, so the most common mistake is leaving out the article before a singular countable noun: not “I have car” but “I have a car”. The second is adding “the” when talking about something in general: not “The life is beautiful” but “Life is beautiful”.
A short exercise
Write five things you saw today, starting with “I saw a…”. Then add a second sentence for each one, this time using “the”: “I saw a bird. The bird was blue.” This two-step pattern is an easy way to feel the difference between the two articles.
To keep going, see There is or there are? Saying what exists and Present simple or present continuous? The difference.
Frequently asked questions
Why is it “a university”, not “an university”?
Because the rule follows sound, not spelling; “university” starts with a “yu” sound, which is a consonant sound.
Do country names never take “the”?
Most don't, but a few do: “the United Kingdom”, “the United States”, “the Netherlands”.
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