▲比较常见的频度副词有 always, usually, often, frequendy, normally, sometimes, occasionally, repeatedly, seldom, rarely, hardly ever 等,另外以下短语也表示频度 once a week, four times a month, from time to time, again and again, now and then, as a rule 等。
▲另外,请参考英语语法网的以下文章,对你可能有帮助:
《英语频度副词复习要点(大全)》