Indefinite Articles A An Usage RulesSet 5
Frequently Asked Questions
When should I use "a" versus "an" before a word?
Use "a" before words that start with a consonant sound and "an" before words that start with a vowel sound. For example, "a book" and "an apple."
How do indefinite articles function in English grammar?
Indefinite articles ("a" and "an") are used to refer to non-specific or general nouns. They indicate that the noun is not a particular one known to the listener or reader.
What is the rule for using "a" and "an" with abstract nouns?
The same rule applies to abstract nouns as to other nouns: use "a" before a consonant sound and "an" before a vowel sound. For example, "a theory" and "an idea."
How do I use indefinite articles in time expressions?
Indefinite articles can be used in time expressions to indicate a non-specific instance of time. For example, "a day" or "an hour."
Can indefinite articles be used with adjectives starting with vowels?
Yes, "an" is used before adjectives starting with a vowel sound, followed by a noun. For example, "an old book."