In French grammar, articles play a crucial role in conveying meaning and determining the gender and number of nouns. There are three main types of articles in French: definite articles (le, la, les), indefinite articles (un, une, des), and partitive articles (du, de la, de l’).

Definite articles are used to refer to specific nouns. They agree in gender and number with the noun they modify. For example, “le livre” means “the book” in singular masculine form, whereas “la porte” means “the door” in singular feminine form.

Indefinite articles are used to refer to non-specific or unidentified nouns. They also agree in gender and number with the noun they modify. For example, “un homme” means “a man” in singular masculine form, whereas “une femme” means “a woman” in singular feminine form.

Partitive articles are used to express an indefinite quantity or portion of an uncountable noun. They do not agree with gender and number. For example, “du pain” means “some bread”, and “de la soupe” means “some soup”.

Understanding the theory of articles in French grammar is essential in order to correctly form sentences and convey accurate meaning.