I think you mean "Combien" and not "Combein." It means "How many brothers or sisters do you have" (as a rough translation) and to respond you say "J'ai ____ frères et sœurs. (I have ____ brothers and sisters"
"Do you have brothers and sisters?" and "Do you all have some brothers and sisters?" are English equivalents of the French phrase Avez-vous des frères et soeurs? Context makes clear whether one "you" (case 1) or two or more "you all" (example 2) suits. The pronunciation will be "a-vey-voo dey fre-rey sur" in French.
vous avez parfaitement raison
vous avez fait mon jour
A quelle heure avez-vous l'anglais?
qu'est ce que tu as / vous avez fait ?
Combien de soeurs avez-vous?
Translation: Comment allez-vous mes freres et soeurs?
In French, you would say "Combien de frères ou sœurs as-tu?" to ask how many brothers or sisters someone has.
Avez-vous des frères ou des soeurs?
avez-vous ... ? est-ce ce que vous avez ...? vous avez .... ?
Do you have? Avez-vous une voiture? Do you have a car?
Avez-vous...? in French is "Do you have... ?" in English.
Quel age avez- vous when translated to English becomes 'How old are you'.
You would say J'ai (I have) then the number lets say one brother (un frere) so it would be j'ai un frere.
"Do you have brothers and sisters?" and "Do you all have some brothers and sisters?" are English equivalents of the French phrase Avez-vous des frères et soeurs? Context makes clear whether one "you" (case 1) or two or more "you all" (example 2) suits. The pronunciation will be "a-vey-voo dey fre-rey sur" in French.
Vous avez means "You have". Saying Avez-vous would be hiphenated if you are asking a question formally.For instance:Vous avez une voiture grise - You have a grey car.Avez-vous une voiture grise? - Do you have a grey car?
"Vous avez" is conjugated in the second person plural form in French. It is used to address more than one person in a formal or polite way.