"How you... ?" is a literal English equivalent of the incomplete French phrase Comment vous... ? The pronunciation of the interrogative in the second person informal singular "you" / formal and informal plural "you all" will be "kuh-maw voo" in French.
"How are you?" in English is Comment allez-vous? in French.
"How are you today?" in English is Comment ça va aujourd'hui? in French.
Comment allez-vous aujourd-hui? in French means "How are you today?" in English.
Avez-vous...? in French is "Do you have... ?" in English.
"Good! And how are you?" in English is Bien! Et ça va?informally or Bien! Et Comment allez-vous? formally in French.
The phrase "how are you" is translated to "comment allez-vous" in French.
Qui, vous? in French means "Who, you?" in English.
Vous allez! in French is "You go!" in English.
Allez-vous...? in French is "Are you going...?" in English.
In French, "How are you?" is translated as "Comment ça va ?" or "Comment allez-vous ?" for a more formal context. "Comment tellez-vous" is incorrect; the correct phrase is "Comment allez-vous ?" if addressing someone formally or plural.
Reviendrez-vous? in French means "Will you return?" in English.
Que faites-vous? in French is "What do you do?" in English.