Indefinite Articles A An Usage RulesSet 43
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. For example, "a book" and "an apple."
How do indefinite articles work with countable nouns?
Indefinite articles "a" and "an" are used with singular countable nouns to refer to a non-specific item. For example, "I need a pen" indicates any pen, not a specific one.
What is the rule for using indefinite articles with vowel sounds?
Use "an" before a noun that starts with a vowel sound, regardless of the actual first letter. For example, "an hour" because "hour" starts with a silent "h" and the sound is a vowel.
How do indefinite articles function in comparative sentences?
In comparative sentences, "a" or "an" can be used to introduce a non-specific noun for comparison. For example, "She is taller than a typical adult male."
What is the rule for using indefinite articles with masculine singular nouns in Italian?
In Italian, the indefinite article "un" is used before masculine singular nouns. For example, "un libro" (a book).