There are two ways of expressing beauty. "Beau" is the masculine form & "belle" is the femmine form.
Ex.) Il est beau. This means; He is beautiful.
Ex.) Elle est beau. This means; She is beautiful.
Depending on weather the object is masculine or feminine depends on which form of it you should use.
Ex.) Ou est le cahier de maths? This means; Where is the math notebook. Because notebook is masculine, we use the "Il" form of it to answer the question. So the answer would be; Il est dans le sac a dos.
You say, belle cousine.
Reste belle is how you say stay beautiful in French. You can also say: "garde ta beauté, garde ta fraîcheur which also means stay beautiful.
"belle maison"
beau desastre
its "belles voies"
beau petit that is how you say it
"The beautiful little one" is "la belle petite" in French, if you are referring to a girl.
une belle fille
"Belle femme" is "beautiful woman" in French.
Belle famille is beautiful family in French.
Beautiful skin in French is "Belle Peau" :)
Bonjour, ma belle
'Beautiful view' translates to French as 'belle vue'.
Belles personnes is "beautiful people" in French.
Beautiful photographs in french is de belles photos
Beautiful all over in French is belle partout.
Beau Rêve = Beautiful Dream