八种时态常用的标志词

八种时态常用的标志词
1、一般现在时
表示：现阶段经常发生的动作或存在的状态
标志： often、usually、always、sometimes、everyday、in the morning/afternoon…、on Sundays, once a week etc
e.g.：We go to school at six forty every day.
My brother reads a book once a week.
2、一般将来时
表示：将要发生的动作或存在的状态
标志：tomorrow、next week、this month、in an hour、the day after tomorrow etc
e.g.：He will go to see a doctor tomorrow.
I am going to play basketball next week.
She is coming back in an hour.
3、一般过去时
表示：过去发生的动作或存在的状态
标志： yesterday、last week、three days ago、the day before yesterday, in 1990 etc
e.g.：I finished my work yesterday.
He went to New York ten days ago.
4、现在进行时
表示：现在正在进行的动作
标志：now、Look!、Listen! 、It is six o’clock.
e.g.：Look! The boy is playing with a cat.
It’s eight o’clock. The Smiths are watching TV in the living room.
5、过去进行时
表示：过去某个时刻正在进行的动作
标志：at six yesterday morning、from 7 to 9 yesterday、this time yesterday、也可用在when 和while引导的从句
e.g.： He was taking a shower at 11 last night.
They were cooking when the bell rang. (= While they were cooking, the bell rang.)
6、现在完成时
结构： Have / has done
1)表示过去发生或完成的某一动作对现在造成的影响或结果。

标志： already （“已经”用于肯定句的中间和末尾处）、never (“从不”用于中间处) 、ever （“曾经”用于疑问句和肯定句的中间处）、just (“刚刚”用于中间处) 、yet (“已经”用于疑问句的末尾处/“还”用于否定句的末尾处)
e.g.： I have just cleaned my clothes. 我刚洗过衣服。

（“洗衣服”是发生在过去的动作，对现在造成的结果是“衣服干净了”）
2)表示从过去一直持续到现在的动作，将来还可能继续下去。

标志：for+时间段，如for three days
since+时间点/过去时从句，如since 1998，since she left here
e.g.：she has lived in Fuzhou for three years. / Since three years ago.
7、过去完成时
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”。

标志：before, by the end of last year(term, month…) etc.
e.g.：The class had already begun when I came to school.
8、过去将来时
表示：从过去某个时间看将来发生的动作通常在宾语从句中出现，主句为过去时
e.g.： He said (that) he would visit the Great Wall the next day.
She told me (that) she was moving to France in two days.。