Respuesta:
How often significa "¿con qué frecuencia___?"
La estructura para preguntar es la siguiente (lo que está en negritas no se cambia):
How often do/does (persona: you, he, she, etc.) (verbo) (complemento)?
Explicación:
Ejemplos:
How often do you speak english?
How often does she/he eat cake?
How often do they go to the party?
How often does we study?
