习惯或频繁性的动作 (常与频率副词always, usually, often, sometimes, seldom, every day等连用)
(be + 频率副词 / 频率副词 + V )
Does your mother often stay at home during the day?
She is seldom at home during the day. 她白天很少在家。
Paul seldom stays at home on holidays. Paul假日里很少待在家。
What time do you usually go to bed? 你通常几点上床睡觉？
I usually go to bed late, after midnight.
I seldom stay up so late. 我很少熬夜到那么晚。
How often does John wash his hair? John多久洗一次头发？
He washes his hair about three times a week.
How often do you go to a movie? 你多久看一次电影？
I usually go to a movie once a month. 我通常一个月看一次电影。内容来自 听力课堂网：http://www.tingclass.net/show-5855-18779-1.html