a/an + singular countable nounUse this for one non-specific thing or person. Choose a/an from the first sound of the next word.
Articles: a, an, the
A1Use a/an for one non-specific singular noun, the for a specific known noun, and no article for general plurals and uncountable nouns.
What you'll learn
- Choose a or an for one non-specific singular noun.
- Use the for a noun both people can identify.
- Leave the article out with general plural and uncountable nouns.
- Switch from a/an to the when you mention the same noun again.
- Pick a, an, the, or no article from context.
Structure
the + specific nounUse the when both people can identify which person or thing you mean.
Ø + plural noun / uncountable nounUse no article for plural and uncountable nouns when you speak generally.
Build a sentence
Noun type
Context
abook
Maria bought a book.
First mention of one singular countable noun: use a/an.
When to use
First mention
Introduce one singular countable noun for the first time. Maria bought a book.
Known in context
Use the when the thing is clear from the situation. Please close the door.
General statements
Use no article for classes of things or material in general. Dogs need exercise. Coffee smells great.
Second mention
After first mention, use the for the same noun again. Tom saw a movie. The movie was long.
Markers
onefirst timeagainspecificin generalalready known
Spelling
consonant sound
→ use aa universityvowel sound
→ use anan hourfirst letter can mislead
→ follow the soundan honest person / a European cityCommon mistakes
Wrong
I saw cat in the yard.
Correct
I saw a cat in the yard.
A singular countable noun needs an article when you mean one thing in general.
Wrong
Lisa is a engineer.
Correct
Lisa is an engineer.
Engineer starts with a vowel sound, so use an.
Wrong
The dogs are friendly animals.
Correct
Dogs are friendly animals.
For a general statement about all dogs, use no article.
Wrong
Tom gave me an information.
Correct
Tom gave me information.
Information is uncountable here, so do not use a/an.
Wrong
Anna bought a bag. A bag is black.
Correct
Anna bought a bag. The bag is black.
The second sentence refers to the same bag, so it becomes specific.
Wrong
It takes a hour.
Correct
It takes an hour.
Hour begins with a vowel sound, so use an.
Common misconceptions
❝ If the noun is clear in my mind, I can always use the. ❞
Use the only when the listener can also identify the noun from context, earlier mention, or shared knowledge.
❝ Use an before words that start with a,e,i,o,u and a before all other letters. ❞
Choose from sound, not spelling: an hour but a university.
Skills in this rule (6)
A_OR_AN_FOR_ONE_THINGw5Use a or an for one singular countable noun when it is not specific yet
Use a/an when you mean one person or thing in general, not a known one. Choose a before a consonant sound and an before a vowel sound.
THE_FOR_KNOWN_THINGw5Use the when the listener can identify the noun
Use the for a specific person or thing that is already known, already mentioned, or clear from the situation.
ZERO_FOR_PLURALS_AND_UNCOUNTABLESw5Use no article for plural and uncountable nouns when speaking generally
Use no article when you talk about things in general with plural countable nouns or uncountable nouns. Do not add a/an before them in this meaning.
RETURN_WITH_THE_AFTER_FIRST_MENTIONw4Use a/an for first mention and the when you mention the same noun again
When a noun appears for the first time, use a/an. When you return to that same noun, switch to the.
AN_FROM_SOUND_NOT_LETTERw4Choose a or an from the first sound, not the first letter
Listen to the first sound of the next word. Use an before a vowel sound and a before a consonant sound.
PICK_ARTICLE_FROM_CONTEXTw5Choose a, an, the, or no article from the meaning of the sentence
Look at two things: what kind of noun it is and whether it is general or specific. Then choose a/an, the, or no article.