A" and "an" are indefinite article content that precede nouns or maybe the adjectives modifying nouns. In English grammar, "a" and "an" are determiners, this means they specify the identification or quantity of something, and for each terms, that amount is "a person"—the term from which they're derived. Wise Vocabulary: https://calgary-real-estate-agent33108.yourkwikimage.com/669412/the_2_minute_rule_for_area_real_estate