Artiklid
sound.
Examples: a boy, a car, a bike, a zoo, a union, a house
· an is used before singular countable nouns which begin with a vowel sound.
Examples: an elephant, an egg, an apple, an orphan, an army
· Is used when referring to an unspecified thing.
Exmaple: Mary really wants a dog for Christmas.
"When I was at the zoo, I saw an elephant!"
· Is used with singular countable nouns when we want to say what
sombody/something is or what someone's job is.
Example: It is a cat. Sue is an engineer.
· Is used when something/somebody is mentioned first time.
Example: She picked up a book.
· Is used when you want to show how often you do something.
Example: I go to the gym twice a week.
· Is used before numeral when it means "one"
Examples: a hundred, a pound, a thousand, a dollar, a quarter, a half
The
· Is used when both the person speaking and listener know the specific object