In French grammar, adjectives play an essential role in adding details and descriptions to nouns. They agree with the gender and number of the noun they modify.

Firstly, in terms of gender agreement, adjectives have different forms for masculine and feminine nouns. For example, the adjective “petit” (small) becomes “petite” when describing a feminine noun like “fille” (girl).

Secondly, in terms of number agreement, adjectives change form depending on whether they are modifying a singular or plural noun. For example, the adjective “beau” (beautiful) becomes “beaux” when describing plural nouns like “garçons” (boys).

It is important to note that adjectives usually follow the noun they modify in French. For example, instead of saying “the blue car,” you would say “la voiture bleue” (the car blue).

Adjectives in French also have different forms for placement before or after the noun and they convey different meanings. When placed before the noun, they usually have a more subjective or emotional meaning, while when placed after the noun, they tend to have a more objective or descriptive meaning.

Overall, understanding the rules of agreement and placement of adjectives is crucial for achieving accuracy and fluency in French.