had to do是什么时态

回答
爱扬教育

2022-09-27

现在时have to、过去时had to、现在完成时have had to、将来时will have to。

扩展资料

  have的用法

  一、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。

  二、have作普通动词形式

  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。