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has加动词的过去分词是什么时态
用于现在完成时,过去分词。现在完成强调过去的动作对现在的影响,一般过去只表示过去的某个具体时间里发生的动作,与现在没联系。she left here five minutes ago.(就说明走了) she has left.(强调现在不在这了)。 扩展资料
为表示习惯动作,do与have连用:
— Do you have earthquakes in your country? 你们国家地震吗?
— Yes,but we don’t have them very often. 有,但不经常。 have意指take(a meal)(吃),give(a party)(举行)等。 We have lunch at one. 我们1点钟吃饭。
They are having a party tomorrow. 他们明天举行聚会。
I hope you’ll have a good holiday. 我希望你愉快地度过假期。 have作助动词
主要变化形式:have,has,had 动名词/现在分词:having
1)have +过去分词,构成完成时态,例: He has left for London.他已去了伦敦。
By the end of last month, they had finished half of their work.
上月末为止,他们已经完成工作的`一半。
2)have + been +现在分词,构成完成进行时(现在完成时),例:
I have been studying English for ten years. 我一直在学英语,已达十年之久。
3)have+been +过去分词,构成完成时态的被动语态,例: English has been taught in China for many years. 中国教英语已经多年。
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