所在位置：查字典英语网 > 大学英语 > 四级大学英语 > 四级大学英语单词 > 情态+动词进行/完成进行时态

情态+动词进行/完成进行时态

　　情态动词也可以和动词进行形式或完成进行形式构成谓语：表示应当正在，的意思。

　　【例如】

　　Why should we be sitting here doing nothing?

　　She might still be thinking about the question you raised.

　　He cant be swimming in such weather.

　　At the moment she may be playing with her schoolmates.

　　We neednt be standing here in the rain. We might take shelter in the hut over there.

　　情态动词间或也可以和一个动词的完成进行形式构成谓语，表示应当一直在，想必一直在这类意思。

　　【例如】

　　They are sweating all over. They must have been working in the fields.

　　They may have been discussing the problem this morning.

　　She couldnt have been swimming all day.

点击显示

上一篇： 英语四级考试高频词汇笔记完整版(六)

下一篇： 英语四级考试高频词汇笔记完整版(五)