常见的助动词有:
be(无词义),do(无词义),have(无词义),shall 将要,will 将要。
一、be 的助动词用法
be 作为助动词,用来构成进行时态和被动语态。如:
We are working hard in the garden.(构成现在进行时)
我们在花园里辛勤劳动。
The house was painted purple.(构成被动语态)
房子被刷成紫色的。
二、do 的助动词用法
do 作为助动词,用来构成疑问句、否定句、强调句。如:
Do you live in Shanghai?(构成疑问句)
你住在上海吗?
I dont like to have hamburgers.(构成否定句)
我不喜欢吃汉堡包。
Do come please.(构成强调句)
一定要来。
三、have 的助动词用法
have 作为助动词,用来构成完成时态。如:
Have you finished the work?(构成现在完成时)
你的工作完成了没有?
四、shall 和 will 的助动词用法
shall 和 will 作为助动词,用来构成将来时态。如:
I will call you this evening.(构成一般将来时)
今晚我会打电话给你。
What shall we do next week?
下个星期我们做什么?
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