ca va- informal
Comment Allez-Vous-Formal
The question 'Tu fais quoi maintenant' means You're doing what now?, What are you doing now? In the word-by-word translation, the personal pronoun 'tu' means 'you'. The verb 'fais' is in the second person singular, and therefore means '[you] are doing, do do, do'. The interrogative/relative pronoun 'quoi' means 'what'. The adverb 'maintenant' means 'now'.
Espero que esta carta te/le encuentre bien (informal/formal)
Que fais-tu is a French equivalent of 'What are you doing'. The interrogative 'que' means 'what'. The verb 'fais' means '[you] are doing or making, do do or make, do or make'. The subject pronoun 'tu' means 'you'.That's what a speaker may ask of someone from the close circle of family, friends, and peers. Otherwise, it may be 'Que faites-vous' or 'Qu'est-ce que vous faites'. Both phrases use the more formal 'you are doing' ['vousfaites'] form. They respectively are pronounced 'kuh feht voo' and 'keh-skuh voo feht'.qu'est-ce que tu fais ? is the French translation for 'what are you doing'.
Bien, et tu? (informal) Bien, et Usted? (formal) Bien, et tu? (informal) Bien, et Usted? (formal)
Tu fais belle is a French equivalent of 'You look so beautiful'. The subject pronoun 'tu' means 'you'. The verb 'fais' means '[you] are doing or making, do or make, to do or make'. The feminine adjective 'belle' means 'beautiful'. All together, it's pronounced 'two feh behl'.That's for a 'beautiful' female. For a 'beautiful' or 'handsome' male, it becomes 'beau'. So the phrase is pronounced 'tyoo feh boh'.
Comment allez-vous? (formal)Comment vas-tu? (informal)Comment ça va? (more informal)
Como esta/estas? (formal/informal. With accent on the 'a') = How are you doing?
formal (or plural): comment allez-vous ? informal: comment vas-tu? comment ça VA ? comment ça VA ( This is most used )
Was machst du? --informal Was machen Sie? --formal
¿Cómo estás? (Informal) ¿Cómo está? (Formal)
Que va usted/vas hacer hoy? (Formal/informal)
Ahoj is hello/bye depending what you are doing and who you are talking to, it is informal. Čau is formal hello, and Nazdar is formal bye.
Comment allez-vous is the standard phrase you would use when you want to ask someone how they are in French. This phrase is most commonly used when you are talking to strangers, elders, or someone in a formal setting. Comment ca va is a far less formal way to ask how someone is doing in French. You would reserve this phrase for friends and family members.
I do not agree that formal writing has expired, but it is less popular than it used to be. The alternative is informal writing. Informal writing works perfectly well, if you know what you are doing.
Como se llama tu/su hermana (informal/formal)
How are you doing? = Wie geht es dir? (singular, informal) How are you doing? = Wie geht es euch? (plural, informal) How are you doing? = Wie geht es Ihnen? (formal) or simply Wie geht's? (can be used in all cases)
What are you doing ? (You Plural Form informal)