"Chatear" (to chat) is a "Spanglish" verb that has reached fairly common useage. It mostly refers to computer chatting.
"Charlar" can be used concerning informal verbal communications.
A chat would be "una charla". Chats would be "charlas".
He/she/it/you formal chats would be "charla" or "chatea"
j'aime chats
You would say "J'ai trois chats" in French to express that you have three cats.
vous chats
Les chats sont diaboliques, les chats sont des animaux du diable.
j'ai trois chats.
galerie des chats
You can say "Elle n'aime pas les chats" in French to express that she doesn't like cats.
il ya deux chats
les chats sont formidables
je n'aime pas les chats
J'aime mes trois (3) chats
J'aime beaucoup mes chats.