什么时候用be动词什么时候用do和does
动词be是联系动词，后面一般跟表语，但他也可用来构成现在时，被动态。
do可作为行为动词，就是“做”的意思，但他更多的是用作助动词，那用法就多了。如：
1） 构成一般疑问句
2） do + not 构成否定句
3) 构成否定祈使句，例如：
4） 放在动词原形前，加强该动词的语气，例如：
5） 用于倒装句，
6） 用作代动词
扩展资料
be是一个连系动词,它有自己不同的形式
现在时：be 进行时：being 过去时：was/were 过去分词：been
它的后面必须跟形容词或名词作表语,与之构成系表结构,充当句子的谓语.
i am a student主语：i 谓语：am a student（系表结构）
being是它的现在进行时态,一般不单独用,而是用于现在进行时的被动语态.（being+动词过去分词）
the bike is being repaired.单车正在被修理中.
it is being finished by him这正在被他完成中.
been是它的过去分词,也不一般单独使用,而是用于现在完成时、过去完成时以及需要它的句子.
i have been here for a long time.我已经到这里有一段时间了.
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绛旓細鍔鍔ㄨ瘝do 鐨勭敤娉: 1)鏋勬垚涓鑸枒闂彞,渚嬪: Do you want to pass the CET?浣犳兂閫氳繃澶у鑻辫娴嬭瘯鍚? 2) do + not 鏋勬垚鍚﹀畾鍙,渚嬪: I do not want to be criticized.鎴戜笉鎯虫尐鎵硅瘎銆 3)鏋勬垚鍚﹀畾绁堜娇鍙,渚嬪: Don't go there. 涓嶈鍘婚偅閲屻 璇存槑:鏋勬垚鍚﹀畾绁堜娇鍙ュ彧鐢╠o,涓鐢╠id鍜宒oes銆 4)鏀惧湪鍔ㄨ瘝...
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绛旓細鈥Be鈥濇湁涓ょ缂╁啓娉曪紝濡備笅锛12. He's not.../He isn't...13. You're not.../You aren't...浣嗏渁m + not鈥濈殑缂╁啓娉曞彧鏈変竴涓細14. I'm not.鏈変汉鐢ㄢ渁in't鈥, 浣嗚繖骞朵笉鏄爣鍑嗚嫳璇傝皥杩囦簡鈥be鈥濅綔涓诲姩璇嶇殑鍔熻兘锛岀幇鍦ㄧ湅鐪嬧渂e鈥濅綔鍔鍔ㄨ瘝鏃锛屾湁浜涗粈涔堢敤娉曪細1.鈥淏e + 鐜板湪鍒嗚瘝...
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绛旓細1銆be鍔ㄨ瘝鐨鐢ㄦ硶銆俠e am / is are 鐜板湪鏃 was were 杩囧幓鏃 鍗曟暟 澶嶆暟 鑻辫涓,be鍔ㄨ瘝閫夌敤鍗曟暟杩樻槸澶嶆暟,瑕佺敱涓昏鏉ュ畾,涓昏鏄崟鏁,灏辩敤鍗曟暟,鍙嶄箣鐢ㄥ鏁般傗梿 鍙ヤ腑鍚湁be鍔ㄨ瘝鏃:鑲畾鍙: 涓昏+be + 鍏朵粬鍚﹀畾鍙: 涓昏+ be + not + 鍏朵粬涓鑸枒闂彞: Be +涓昏+鍏朵粬 +? 鐗规畩鐤戦棶鍙: 鐤戦棶璇(what / who ...
