"ça va" is informal, but correct and very widely used by everybody in spoken French.
ca va- informal Comment Allez-Vous-Formal
Comment êtes-vous ? "Comment ca va?" or just "Ca va?" (informal) "Comment allez vous?" (formal)
informal: salut! ca va? formal: Bonjour! Comment allez-vous?
if informal: ca va? (pronounced sa va) or 'tu vas bien?' - meaning are you ok?formal: comment allez-vous?
Comment allez vous? /commo alle-y vou/ - formal Comment ca va? /commo sa va/ - informal
You can say, comment-allez vous? for formal or comment-vas tu? for informal comment-ca va? is childish and you should try not be use it.
Formal is comment allez vous /como-alle-vu/ and informal is comment ca va /como-sa-va/ or simply ca va. Note that the c in ca va should have a tail to denote the /s/ sound.
'comment ça va' is a common form for 'how are you' or 'how do you do' in French. It is widely used and regarded as rather informal but appropriate to most situations.
comment allez-vous (proper) ca va (informal; more common) va tu (creole patois)
It means how are you. For more informal conversations you can simply ask Ca va? It means how are you. For more informal conversations you can simply ask Ca va?
I don't actually know. But, an informal way of saying "What's up?" is "Ca va?" *suh-vah*
comment ca va? or, informally, ca va?