be是什么动词啊?答:be动词属于谓语动词其中一种 谓语动词包含4种 【1】行为动词:write, say, speak, run 【2】系动词:am,is,are,was,were,【3】情态动词:can,could,must,may 【4】助动词:be,do,did,will,have,would be既是系动词也是助动词;系动词be 和助动词be统称为be动词 就像动名词(doing)和动词现在...
什么是be动词?答:be动词 be动词的用法 be [bi:]vi 现在时 I am, you are, he is, we are, you are, they are (缩略式 I'm, you're, he's, we're, you're, they're), (否定缩略式 I'm not, isn't, aren't), 过去时 I was, you were, he was, we were, you were, they were (...