howoften后面加什么
how often后跟一般疑问句，How often + 助动词 do (does 或 did) + 主语 + do sth.? 疑问词 ；
how often
How often do you go to the theatre?
你多久看一次戏？
How often do you use the bus?
你多长时间坐一次公共汽车？
How often do you go to the theatre?
你多长时间看一次戏？
How often do you go swimming?
你多久去游泳一次？
How often do you exercise?
你多长时间锻炼一次？