be动词在什么时候用?比如They're afraid he's forgetting.这两个be动词为什么要用
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/03 22:40:15
![be动词在什么时候用?比如They're afraid he's forgetting.这两个be动词为什么要用](/uploads/image/z/5794645-13-5.jpg?t=be%E5%8A%A8%E8%AF%8D%E5%9C%A8%E4%BB%80%E4%B9%88%E6%97%B6%E5%80%99%E7%94%A8%3F%E6%AF%94%E5%A6%82They%27re+afraid+he%27s+forgetting.%E8%BF%99%E4%B8%A4%E4%B8%AAbe%E5%8A%A8%E8%AF%8D%E4%B8%BA%E4%BB%80%E4%B9%88%E8%A6%81%E7%94%A8)
be动词在什么时候用?比如They're afraid he's forgetting.这两个be动词为什么要用
be动词在什么时候用?
比如They're afraid he's forgetting.这两个be动词为什么要用
be动词在什么时候用?比如They're afraid he's forgetting.这两个be动词为什么要用
be动词也是动词,可以在句子中充当谓语.
若果’re不用的话,句子错误,因为afraid(害怕的)是形容词,
不是动词,不能说they afraid,加了’re的话,they是主语
,’re是谓语,afraid是表语,那样句子结构就完整了.后面的也类似.