am is are 怎么用的?
问题描述：
am is are 怎么用的?
有时候加和不加的意思就不一样,那什么时候加?什么时候不加啊?比如
sometimes,he and she watch television和sometimes,he and she are watch television这第二句是两个人,加个are对吗?
答
sometimes,he and she watch television这句是对的.
he and she are watch television是不对的,应改为he and she are watching television.正在看电视.
am is are是be动词,在句子中充当动词成分,watch也是动词,所以不能出现在一个句子里.be+doing是现在进行时的形式,所以是are watching television.
特别是一般现在式你要注意,有am is are 就不可以有其它动词出现在一个句子里.