英语时态总结(完整),全全
英语的时态是由动词的变化和时间状语来表达的。英语中共有十六种时态，但常考或常用的只有九种。要掌握英语的时态和语态，必须掌握好英语中的助动词(do。be。have)和时间状语这两个核心问题。
一般现在时主要用来表示人、事物的现在状况和特点，表示经常或惯性的动作。句子中常有often。always。from time to time等时间状语，也可表示客观规律和永恒真理等。例如，He usually goes to work at 7 o’clock every morning.（他每天7点上班。）
人力资源岗位
现在进行时表示说话时或目前一段时间内正在进行的活动，也可表达感情彩，加强语气。与频率副词，如always，constantly，continually，XXX等连用表示说话人的某种感情彩（赞叹、厌烦、埋怨等）。例如，We are having English class.（我们正在上英语课。）
现在完成时表示动作发生在过去，完成在过去，但强调与现在情况仍有联系，其结果或影响仍存在。例如，I have XXX（我已经完成了作业。）
其他时态包括现在完成进行时、过去一般时、过去进行时、过去完成时、过去完成进行时、将来一般时、将来进行时、将来完成时和将来完成进行时。掌握这些时态对于学好英语非常重要。
They have been living in Beijing for five years now。This tense is used to XXX up until now.
He used to smoke a lot。but he has quit now。This tense is used to XXX true in the present.
In August 2008.Beijing was hosting the 29th Olympic Games。This tense is used to talk about an n that was in progress at a specific point in the past.
By the time we arrived。they had already finished the project。This tense is used to talk about an n that was completed before a specific point in the past.
I am XXX is used to talk about a future n that will happen at a specific time.
This time tomorrow。I will be doing my homework。This tense is used to talk about a future n that will be in progress at a specific time.
By the end of next month。he will have traveled 1000 miles on foot。This tense is used to talk about an n that will be completed before a specific point in the future.
Corrected and rewritten:
He would work for us.
Present continuous:
古人是怎么行房之事的Subject + am/are/is + present participle (v-ing)
This XXX.
XXX: I am buying a book.
First person: I am doing something
XXX: You are doing something (using "doing" as a general term for all v-ing forms)
易经与周易
Third person: He/She/It is doing something
XXX: He is working.
Past continuous:
Positive: Subject + was/were + present participle + other
Negative: Subject + was/were + not + present participle + other
n: XXX
Answer: Yes。I was/were。/ No。I XXX't.
Special n: Wh- word + was/were + subject + present participle + other
He was working when he was alive.
Future continuous:
Subject + will + be + present participle
He will be working for us.
Past XXX continuous:
Should/would + be + present participle
He said that he would be working for us.
Present perfect:
Subject + have/has + past participle (done)
Positive: Subject + have/has + past participle + other
Negative: Subject + have/has + not + past participle + other
n: Have/Has + subject + past participle + other
完成时态
Special n: Wh- word + have/has + subject + past participle + other
龙井说唱 朋友He has worked for us for ten years.