You would say "Tu es cool" in French.
The French word for "very cool" is "très cool."
In French, cool is spelled "cool." The pronunciation is the same as in English.
You can say "Salut, je suis plus cool que toi" in French.
To say "French assignment" in French, you can say "devoir de français."
You say "j'aime le français" to say "I love French" in French.
Soyez cool
c'est cool
Tu es cool.
Hyper-cool
je suis cool !
C'était cool
je suis tellement cool
T'es cool, mon pote.
"Il est super" or just "Il est cool."
Barbar est un livre cool
According to translate.google.com it is.... "Vous avoir l'air cool"
il fait coolio