概念: 经常、反复发生的动作或行为及现在的某种状况。 基本结构:①be动词;②行为动词
时间状语
Always, usually, often, sometimes, every week (day, year, month…), once a week, on Sundays, etc.
否定形式:①am/is/are+not; ②don't/doesn't+V(行为)
一般疑问句:①be+主语...?; ②do/does+主语+V(行为)..?
一般现在时态