初中英语八大时态的构成，标志词

Question

如题所述

Answer 1

1 一般进行时 be doing 【now, at this time, days, etc. look . listen 】
2 一般现在时 do does 【always, usually, often, sometimes, every week (day,year, month…), once a week, on Sundays, （星期后+s 表示每个星期几都要干某事）】
3 一般过去式 did 【ago, yesterday, the day before yesterday, last week,last(year, night, month…), in 1989, just now, at the age of 5, one day, long long ago, once upon a time】
4 现在完成时 have has done【yet,already,just,never,ever,so far,by now,since+时间点，for+时间段，recently, lately, in the past few years】
5 过去进行时 be doing 【at this time yesterday, at that time或以when引导的谓语动词是一般过去时的时间状语等。 】
6 一般将来时 will do 【tomorrow, next day(week, month, year…),soon, in a few minutes, by…,the day after tomorrow,】
7 过去将时 【the next day(morning, year…),the following month(week…)】
8 将来完成时 【by the time of;by the end of+时间短语（将来）;by the time+从句（将来） 】

Answer 2

其实英语共有十六种时态，但我们平时比较常用的只有八种，如下：
1.一般现在时: 主语+do/does(现在分词)
e.g We clean the room every day.
2.一般过去时: 主语+did
e.g We cleaned the room just now.
3.现在进行时: 主语+am/is/are doing
e.g We are cleaning the room now.
4.过去进行时: was/were doing
e.g We were cheaning the room at 5:00 yesterday afternoon.
5.现在完成时: have/has done
e.g.We have cleaned the room already.
6.过去完成时: had done
e.g We had cleaned the room before he arrived.
7.一般将来时: will do/
e.g We will clean the room tomorrow.
8.过去将来时: was/were to /would do
e.g He said he would clean the room next.

Answer 3

既然有人回答过了，那我就补充一下吧。
过去进行时：was/were+doing 表过去这个时段、时刻正在...
特别的，when引导的时间状语从句用一般过去式，主句用过去进行时；而
while相反
一般过去式指这个动作已经完成火这个动作经常发生；过去进行时指这个动作尚未完成本回答被网友采纳