Comment t'appelles-tu ? means what's your name?
Comment tu trouves ça? :: How was that for you?
comment t'appelles-tu? / comment tu t'appelles? = what's your name?
Comment allez-vous? or, to a friend or child, Comment vas-tu? or Comment tu vas?
comment as-tu su / comment avez-vous su
Tu t'appelles comment? or Comment tu t'appelles?
comment allez-vous aujourd'hui ? comment vas-tu aujourd'hui ?
This depends on the person that you are adressing? familliar or not: Familliar: comment t'appelles tu (or more commonly: comment tu t'appelles?) not familliar: comment vous appelez vous? (or comment vous vous appelez?)
Tu t'appelles comment? in French means "What's your name?" in English. The more correct form is Comment t'appelles-tu?
The French phrase "How are you?" is spelled "Comment ça va ?" or "Comment vas-tu ?"
Comment t'appelles-tu ? or comment tu t'appelles ? means "what is your name?". The standard reply is: "Je m'appelle (your name)"
Both expressions are used interchangeably. "Comment ça va ?" means: "How are you?", "How is it going?" "Comment vas-tu ?" means: "How are you doing?" "Comment" = "How", "ça" = "it", "tu" = "you", "va" and "vas" are forms of the verb "aller" (to go)
how are you