be动词是动词吗
回答如下:
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)和动词现在分词(doing)统称为动词-ing一样,
【1】系动词be用法。(am,is,are;was;were;been)
She is a teacher.
She was a student three years ago.
【2】助动词be用法:
She is watching TV in the room.
She was watching doing her homework at this time yesterday.
英语中助动词归纳如下:
(1) am, is, are , was , were,(帮助变进行时态,帮助变被动语态)
(2) do , does, did (帮助句子变疑问句,否定句,强调谓语动词作用)
(3)has ,have (帮助句子变现在完成时态作用)
(4) had ,(帮助句子变过去完成时态,以及虚拟语气倒装)
(5) will , shall (帮助句子变一般将来时态)
(6) would , should (帮助句子变过去将来时态)
(7) be going to(帮助句子变一般将来时态)