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It looks like someone tried to literally translate the English expression "You go, girl" in to Spanish. As Answer 1 notes, this is not the meaning that the Spanish carries. If you want to impart the meaning of "You go, girl" in Spanish, what you should say is, "¡Adelante, chica!" / "¡Pa'lante, chica!" (Forward, girl, substandard usage) or "¡Enséñales, chica!" (You show them, girl). It is worth noting that this expression is not native to Spanish-speaking countries.
usted va muchacha
Either "tú vas" or "usted va", depending on who you are talking to.
¿Va usted conmigo?
¿Cuándo va usted/vas a regresar a la casa?Cuando usted va a regresar... --- When you are going to be home.
Aun no me conoce usted, cuando va venir a Kentucky
How many times a year do you go to the hospital
Usted VA a tener una pelota.
¿Usted va a ser / será mi maestro de español?
"usted va a perder mis besos"
"Voy" means "I go" and "va" means "he/she goes" in Spanish. They are conjugated forms of the verb "ir," which means "to go."
It is "tu vas" or "usted va", or "ustedes van" in the plural.
Que va usted/vas hacer hoy? (Formal/informal)