informal=estas teniendo una fiesta?
formal=esta teniendo una fiesta?
nuestra clase está teniendo una fiesta
Some one is having a party and it is private = Fiesta privada As in a private person (Party of the first part...) = Parte privada
Le invitan a una fiesta de cumpleaños- is you are invited to a birthday party in Spanish.
Tener una fiesta de cumpleaños para Michael (Miguel).
vamos a tener una fiesta mañana a las horas 1100.
Having is "teniendo."
The big party would be "El fiesta grande" in Spanish.
In spanish, Bachelorette party translates to "despedida de soltera".
Tu fiesta
fiesta
"haber"
fiesta