英语的八大时态及其用法
一、 一般现在时：
【概念】经常、反复发生的动作或行为及现在的某种状况。
【时间状语及其标志词】 always, usually, often, sometimes, every week (day, year, month…), ,once a week, on Sundays, work, study, sleep, wear
【基本结构】①be +形容词、名词②动词原形③动词三单
【否定形式】am/is/are+ not;此时态的谓语动词若为行为动词，则在其前加don't, 如主语为第三人称单数，则用doesn't ，同时还原行为动词。
【一般疑问句】把be 动词放于句首；用助动词do 提问，如主语为第三人称单数，则用does ，同时，还原行为动词。
【被动语态】 be （am/is/are）+动词的过去分词
【例句】It seldom snows here.
He is always ready to help others. Action speaks louder than words.
二、 一般过去时：
【概念】过去某个时间里发生的动作或状态；过去习惯性、经常性的动作、行为。
【时间状语及其标志词】ago, yesterday, the day before yesterday, last week(year, night, month…), in 1989, just now, at the age of 5, one day, long, long, ago, once upon a time, etc.
【基本结构】be 动词+形容词，名词；动词ed ;动词不规则
【否定形式】was/were+ not;在行为动词前加didn't ，同时还原行为动词。
【一般疑问句】Was/Were放于句首；用助动词do 的过去式did 提问，同时还原行为动词。
【被动语态】be(was/were) +动词的过去分词
【例句】She often came to help us in those days. I didn't know you were so busy.
三、 现在进行时：
【概念】表示现阶段或说话时正在进行的动作及行为。
【时间状语及其标志词】now, at this time, these days, Look, Listen，at 7:00, look out; be quite, keep silent; etc.
【基本结构】am/is/are+ doing
【否定形式】am/is/are+ not+ doing.
【一般疑问句】把be 动词放于句首。
【被动语态】be(am/is/are)+being+动词的过去分词
【例句】 How are you feeling today? He is doing well in his lessons.
四、 过去进行时：
【概念】表示过去某段时间或某一时刻正在发生或进行的行为或动作。
【时间状语及其标志词】at this time yesterday, at that time; at 7:00 yesterday或以when 引导的谓语动词是一般过去时的时间状语等。
【基本结构】was/were+ doing
【否定形式】was/were + not + doing.
【一般疑问句】把Was 或Were 放于句首。
【被动语态】 was/were +being +动词的过去分词
【例句】At that time she was working in a PLA unit. When he came in, I was reading a
newspaper.
五、 一般将来时：
【概念】表示将要发生的动作或存在的状态及打算、计划或准备做某事。
【时间状语及其标志词】tomorrow, next day(week, month, year…),soon, in a few minutes, by…,the day after tomorrow, etc.
【基本结构】am/is/are/going to + do；will/shall + do.
【否定形式】was/were + not; 在行为动词前加didn't ，同时还原行为动词。
【一般疑问句】be 放于句首；Will/Shall提到句首。
【被动语态】 will/shall be +动词的过去分词
【例句】They are going to have a competition with us in studies. It is going to rain.
六、 过去将来时：
【概念】立足于过去某一时刻，从过去看将来，常用于宾语从句中。
【时间状语及其标志词】the next day(morning, year…),the following month(week…),etc.
【基本结构】was/were/going to + do；would/should + do.
【否定形式】was/were/not + going to + do; would/should + not + do.
【一般疑问句】Was 或Were 提前放于句首；Would/Should 提到句首。
【被动语态】 would/should be +动词的过去分词
【例句】He said he would go to Beijing the next day
七、 现在完成时：
【概念】过去发生或已经完成的动作对现在造成的影响或结果，或从过去已经开始，持续到现在的动作或状态。
【时间状语及其标志词】since, for, already, yet, once ,twice ,…times, from then on, so far, these years, recently, lately ,in the past few years, etc.
【基本结构】have/has + done
【否定形式】have/has + not +d one.
【一般疑问句】Have 或Has 提前放于句首。
【被动语态】have/has been+动词的过去分词
【例句】I've written an article. It has been raining these days.
八、 过去完成时：
【概念】以过去某个时间为标准，在此以前发生的动作或行为，或在过去某动作之前完成的行为，即“过去的过去”。
【时间状语及其标志词】by, before, by the end of last year(term, month…),etc.
【基本结构】had + done.
【否定形式】had + not + done.
【一般疑问句】Had 提前放于句首。
【被动语态】had +been +动词的过去分词
【例句】As soon as we got to the station, the train had left. By the end of last month. We had reviewed four books
英语的八大时态及其用法
一、 一般现在时：
【概念】经常、反复发生的动作或行为及现在的某种状况。
【时间状语及其标志词】 always, usually, often, sometimes, every week (day, year, month…), ,once a week, on Sundays, work, study, sleep, wear
【基本结构】①be +形容词、名词②动词原形③动词三单
【否定形式】am/is/are+ not;此时态的谓语动词若为行为动词，则在其前加don't, 如主语为第三人称单数，则用doesn't ，同时还原行为动词。
【一般疑问句】把be 动词放于句首；用助动词do 提问，如主语为第三人称单数，则用does ，同时，还原行为动词。
【被动语态】 be （am/is/are）+动词的过去分词
【例句】It seldom snows here.
He is always ready to help others. Action speaks louder than words.
二、 一般过去时：
【概念】过去某个时间里发生的动作或状态；过去习惯性、经常性的动作、行为。
【时间状语及其标志词】ago, yesterday, the day before yesterday, last week(year, night, month…), in 1989, just now, at the age of 5, one day, long, long, ago, once upon a time, etc.
【基本结构】be 动词+形容词，名词；动词ed ;动词不规则
【否定形式】was/were+ not;在行为动词前加didn't ，同时还原行为动词。
【一般疑问句】Was/Were放于句首；用助动词do 的过去式did 提问，同时还原行为动词。
【被动语态】be(was/were) +动词的过去分词
【例句】She often came to help us in those days. I didn't know you were so busy.
三、 现在进行时：
【概念】表示现阶段或说话时正在进行的动作及行为。
【时间状语及其标志词】now, at this time, these days, Look, Listen，at 7:00, look out; be quite, keep silent; etc.
【基本结构】am/is/are+ doing
【否定形式】am/is/are+ not+ doing.
【一般疑问句】把be 动词放于句首。
【被动语态】be(am/is/are)+being+动词的过去分词
【例句】 How are you feeling today? He is doing well in his lessons.
四、 过去进行时：
【概念】表示过去某段时间或某一时刻正在发生或进行的行为或动作。
【时间状语及其标志词】at this time yesterday, at that time; at 7:00 yesterday或以when 引导的谓语动词是一般过去时的时间状语等。
【基本结构】was/were+ doing
【否定形式】was/were + not + doing.
【一般疑问句】把Was 或Were 放于句首。
【被动语态】 was/were +being +动词的过去分词
【例句】At that time she was working in a PLA unit. When he came in, I was reading a
newspaper.
五、 一般将来时：
【概念】表示将要发生的动作或存在的状态及打算、计划或准备做某事。
【时间状语及其标志词】tomorrow, next day(week, month, year…),soon, in a few minutes, by…,the day after tomorrow, etc.
【基本结构】am/is/are/going to + do；will/shall + do.
【否定形式】was/were + not; 在行为动词前加didn't ，同时还原行为动词。
【一般疑问句】be 放于句首；Will/Shall提到句首。
【被动语态】 will/shall be +动词的过去分词
【例句】They are going to have a competition with us in studies. It is going to rain.
六、 过去将来时：
【概念】立足于过去某一时刻，从过去看将来，常用于宾语从句中。
【时间状语及其标志词】the next day(morning, year…),the following month(week…),etc.
【基本结构】was/were/going to + do；would/should + do.
【否定形式】was/were/not + going to + do; would/should + not + do.
【一般疑问句】Was 或Were 提前放于句首；Would/Should 提到句首。
【被动语态】 would/should be +动词的过去分词
【例句】He said he would go to Beijing the next day
七、 现在完成时：
【概念】过去发生或已经完成的动作对现在造成的影响或结果，或从过去已经开始，持续到现在的动作或状态。
【时间状语及其标志词】since, for, already, yet, once ,twice ,…times, from then on, so far, these years, recently, lately ,in the past few years, etc.
【基本结构】have/has + done
【否定形式】have/has + not +d one.
【一般疑问句】Have 或Has 提前放于句首。
【被动语态】have/has been+动词的过去分词
【例句】I've written an article. It has been raining these days.
八、 过去完成时：
【概念】以过去某个时间为标准，在此以前发生的动作或行为，或在过去某动作之前完成的行为，即“过去的过去”。
【时间状语及其标志词】by, before, by the end of last year(term, month…),etc.
【基本结构】had + done.
【否定形式】had + not + done.
【一般疑问句】Had 提前放于句首。
【被动语态】had +been +动词的过去分词
【例句】As soon as we got to the station, the train had left. By the end of last month. We had reviewed four books