英语语法【每天一课】谓语动词D类

D.现在完成进行时

（1）形式：

I have (or you have, he has)been studying.

I may have been playing tennis.

（2）现在完成进行时的用法I2国际私塾：

a.和现在完成进行时一样，现在完成进行时可以表示一个由过去某时开始一直持续到现在的动作，常和一个表示一段时间的状语一道用：

I have been learning English for two years.(I am still learning now.)

He has been staying with his uncle during the past two months

表示暂时性的动作用完成进行时比较好，表示长时期的动作时，用完成时比较好：

I have lived here all my life.

We have developed oir country for weo centuries.

b.和现在完成时一样，这个时态也可表示一个过去的动作对现在I2国际私塾的影响;

I have been attending to many matters.( I am feeling tired now.)

I Have been telling him not to be a fool.( He should be cleverer now.)

warming:

1.如果动词表示I2国际私塾状态而不是表示动作，应用现在完成时，而不是用现在完成进行时：

I have known him foe years.（不要用I have been knowing...）

The property has belonged to my uncle during the last ten years.

2.在否定句中一般用现在完成时而不用现在完成时：

I have not learned ( 而不说have not been learning) English for two years.

I have received no assitance from my friend.

但有时也可用现在完成进行时

I haven't been feeling well recently.

She hasn't been working here long.