The rules of indefinite articles.

The rules of indefinite articles.

1. 1

   • INDEFINITE ARTICLES ARE INVARIABLE.
     • USE A
       • WHEN THE NEXT WORD STARTS WITH A CONSONANT
         • A BOOK
       • Before words starting in U and EU
       • When the letter H has a sound.
     • USE AN
       • When the next word starts with a VOWEL or with a mute H.
         • AN APPLE

2. 2

   • To show the person or thing is one of a group.
     • Example: SHE IS A STUDENT AT BUAP

3. 3

   • To refer to something for the first time or to refer to the number “1”
     • EXAMPLE: SHE LIVES IN AN APARTAMENT. THE APARTAMENT IS BIG.

4. 4

   • We don´t use an indefinite article with plural nouns and uncount nouns
     • EXAMPLE: ANNE HAS SHORT BLONDE HAIR.
     • EXAMPLE: HE WAS WEARING BLACK SHOES

5. 5

   • We use a/an with a singular noun to say something about all things of that kind.
     • EXAMPLE: A DOG NEEDS A HOME.

6. 6

   • Use a with the names of days of the week when not referring to any particular day
     • EXAMPLE: I WAS BORN ON A MONDAY.

7. 7

   • Use a with singular nouns after the words 'WHAT' and 'SUCH'
     • What a shame !

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