Grammar

Articles: a, an, the, and no article

The single most common error for non-native speakers. Master when to use a/an, the, or nothing — and lift your Readability score.

7 min read

Key strategies

1.Use a/an for a singular countable noun mentioned for the FIRST time or in general: "I saw a dog."
2.Use the when the noun is SPECIFIC or already known: "The dog was barking." (the one I just mentioned)
3.Use no article for plurals and uncountable nouns spoken about in general: "Cats are independent." "Water is essential."
4.a before a consonant SOUND (a university), an before a vowel SOUND (an hour) — go by sound, not spelling.

The core idea

Articles tell the reader whether a noun is general or specific, and new or known.

a / an — one, non-specific, often new information:
- "I need a pen." (any pen)
the — specific, or already known to the reader:
- "Can I borrow the pen on your desk?" (that specific pen)
no article (zero) — plural or uncountable nouns talked about in general:
- "Dogs are loyal." "Honesty matters."

A classic pattern: introduce with a, then refer back with the.

"I bought a car last week. The car is silver."

The first time, the car is new information (a); after that, it is known (the).

Use an before a vowel sound, a before a consonant sound — judged by pronunciation, not the letter:

"a university" (sounds like "yoo"), "an hour" (the h is silent), "an honest answer."

Article errors ("I am student", "I went to the home") are extremely common and pull down Readability. Two reliable fixes:

A job/role after "be" needs an article: "I am a teacher."
home, work, school often take no article: "I went home." "She is at work."

A quick self-check on this lesson — pick an answer, then see the explanation. Not graded.

1. Choose the correct sentence:

2. First mention: "I adopted ___ cat. ___ cat is black."

3. Which is correct?

4. Talking about cats in general:

The right words lift your score. Study task-specific CELPIP word lists with definitions, examples and exam tips.

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