含义动词形式标 志 词例 句一般现在时表示经常，反复发生的动作或存在的状态主语+动词原形或者第三人称单数-s / es1. always,usually,often,sometimes,seldom,hardly(ever),never等频率副词2. every系列 every year/month/day/summer +星期s on Sundays/MondaysHe goes to school every day. I often have lunch at home.一般过去时表过去发生的动作或存在的状态主语+动词过去式（did 或者bewas/ were）1. last系列,last night/week/month/year2. .ago系列, a second ago/ten years ago3. yesterday系列, yesterday morning/afternoon/evening4. just now 意为“刚才”5. in+过去年份 如： in 2008
