Indefinite Articles A An Usage RulesSet 74
Frequently Asked Questions
When should I use "a" versus "an" before a noun?
Use "a" before a noun that starts with a consonant sound, and "an" before a noun that starts with a vowel sound. This rule applies regardless of the actual first letter of the noun.
How do indefinite articles "a" and "an" function with countable nouns?
Indefinite articles "a" and "an" are used with singular, countable nouns to refer to a non-specific item. For example, "a book" refers to any book, not a specific one.
What is the rule for using "a" and "an" with acronyms?
Use "a" before acronyms that start with a consonant sound and "an" before acronyms that start with a vowel sound. For example, "a NASA mission" and "an FBI agent."
How do indefinite articles "a" and "an" work in negative statements?
In negative statements, "a" and "an" are used to indicate the absence of a specific item. For example, "I don't have a car" means there is no specific car that the speaker possesses.
Can indefinite articles "a" and "an" be used with adjectives?
Yes, indefinite articles "a" and "an" can be used with adjectives before a noun. For example, "a red apple" and "an old house." The article precedes the adjective and the noun.