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All singular countable nouns must have an article. The indefinite article is used when the noun that it describes hasn’t been mentioned before, or the listener doesn’t know which thing they are talking about. They always go before every adjective we use together with a noun.
Remember: It is better to have too many articles than not enough articles.
Indefinite Article - A/An
- when you don't know which item you are talking about
For example: There is a man at the door. - when you don't mean one specific thing, but mean any one in a group
For example: He wants a puppy. - when you introduce something for the first time
For example: They have a puppy.
If you are not sure which article to use, use the indefinite article ‘a’ (or ‘an’ if the following word starts with a vowel sound).
The indefinite article is easy to understand if you think that it means ‘one’.
For example: I want one chair. = I want a chair.
If you remember about ‘one’, you’ll never use ‘a’ with a non-count noun or a plural count noun.
Definite Article - The
- when you have information about which particular item (most commonly an adjective clause/phrase or a key preposition phrase)
For example: The movie that they saw was funny. - when you mean the closest item
For example: Please turn on the light (in this room). - when there is only one of something
For example: Would you like to go to the Moon? - when you mean something that you have already mentioned
For example: The song that we just talked about came on the radio. - when you describe a geographical area
For example: I would not want to live in the west. - when you use the superlative form
For example: This is the best city in the world. - when you talk about rivers, mountains, forests, and oceans
For example: The St.Lawrence River, The Black Forest
Zero Article
- when you discuss non-count nouns
For example: They don't have _coffee. - when you discuss abstract ideas
For example: That country has beautiful__traditions - when you discuss meals - however, if you describe the meal, use an indefinite article
For example: My favorite meal is__lunch. - Today, I just had a quick lunch. - when you describe transportation
For example: He came by__bike. - when you talk about lakes
For example: __Lake Baikal
There are some nouns which change meaning if you use them with an article, or without:
school; church; jail; university; hospital; court; college; bed; sea; prison
If you don't use an article with these nouns, you use the nouns in the ‘proper’ way.
For example: I go to__school because I am a student.
I fell from my bicycle, so I went to__hospital.
However, when you do not use these things in the ‘proper’ way, use an article.
For example: The voting station is in the school across the street. (You do not study at the school, you vote)
The roofers went to the church to fix the roof. (They will not pray, they will repair the building)