频率副词有always、usually、often、sometimes、seldom、hardly、rarely never、never等。频率副词是表示与次数,频率有关的副词。频率副词:一般用来表示动作发生的频率。往往放在句子中间,实义动词之前,非实义动词之后。非实义动词分为:系动词、助动词、情态动词。除此之外,都叫做实义动词。频率副词用法:频率副词用在be动词后。He is always late for class.他总是迟到。频率副词用在主要动词前。My father usually walks home.我的父亲经常步行回家。频率副词用在助动词与实义动词之间。I will always love you.我将永远爱你。频率副词用在ought to之间。You ought often to write to your mother.你应该常给你母亲写信。在答句中,频率副词必须放在助动词前。Do you often go there?你常去那里吗?(误)Yes,I do often.是的,我常去。(正)Yes,I often do.是的,我常去。