The document discusses the partitive in French which refers to an unspecified number of items and is formed using "de" plus a definite article. It provides examples of forming the partitive for masculine, feminine, singular with vowel sound, and plural nouns. The gender and number of the noun determines whether to use "le", "la", "l'", or "les" in the partitive construction. It also notes that "de" alone is used when referring to quantity.