Rules for undefined articles a,an

Rules for undefined articles a,an

1. The indefinite article an will be used in front of words that begin with vowel

   • Example
     • An envelope, an apple, an onion, an island, an umbrella.

2. Indefinite adjectives in English are those we use to refer to any object, without pointing to one in particular. The most indefinite articles are a and an. These articles are used in singular

3. The indefinite article ¨a¨ will be used in front of words that begin with consonant or consonant sound

   • Example
     • A car, a house, a book, a desk, a computer

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