Forming Plurals: Adjectives and Nouns
To form the feminineplural, just add an -s, unless it already ends in an s, then addnothing. To form the masculine plural, just add an -s,except in these cases: -al becomes -aux (exceptions:banal - banals, and final - finals); -eau adds an -x; andif it ends in an x or s already, add nothing. Just remember to changethe le, la, or l' to les.
And of course there are moreexceptions... some adjectives are invariable and do not have femine orplural forms. Compound adjectives, such as bleu clair (lightblue) and vert foncé (dark green), adjectives that are alsonouns, such as or (gold) and argent (silver), and thewords chic (stylish), bon marché or meilleur marché(inexpensive) never change.