英语的六大时态包括:
一般现在时
定义:描述经常性、习惯性的动作或状态,以及客观事实、普遍真理等。
结构:主语 + 动词原形(第三人称单数时加 -s 或 -es)。
例句:
She goes to work by bus every day.
They usually play football on weekends.
一般过去时
定义:描述过去某个时间发生的动作或状态,或过去习惯性、经常性的动作。
结构:主语 + 动词过去式。
例句:
They visited the museum last week.
I was reading a book when the phone rang.
现在进行时
定义:描述现阶段或说话时正在进行的动作或行为。
结构:主语 + am/is/are + 动词-ing。
例句:
They are studying for the exam right now.
What are you doing at the moment?
过去进行时
定义:描述过去某个时间正在进行的动作或行为。
结构:主语 + was/were + 动词-ing。
例句:
She was cooking dinner when I arrived.
They were playing chess when I called them.
一般将来时
定义:描述将来要发生的动作或状态。
结构:主语 + will + 动词原形。
例句:
They will arrive tomorrow morning.
I will finish the project by the end of this month.
现在完成时
定义:描述发生在过去的动作对现在造成的影响或结果,或过去开始并延续到现在的动作或状态。
结构:助动词 have/has + 过去分词。
例句:
I have seen that movie several times.
They have lived in this city for five years.
建议在实际应用中,通过大量的阅读和写作练习来熟悉这些时态的用法,从而提高英语表达的准确性和流畅性。