97骚碰,毛片大片免费看,亚洲第一天堂,99re思思,色好看在线视频播放,久久成人免费大片,国产又爽又色在线观看

i ve been是什么時(shí)態(tài)

回答
瑞文問(wèn)答

2024-09-06

現在完成時(shí),但一般都這么說(shuō):have/has done,have/has been done,是現在完成時(shí)的被動(dòng)語(yǔ)態(tài),F在完成時(shí)表示到說(shuō)話(huà)時(shí)為止(或到現在為止)已經(jīng)發(fā)生或完成了(不一定結束)的動(dòng)作或狀態(tài)。過(guò)去某一時(shí)間開(kāi)始并一直持續到現在,并且有可能還會(huì )持續的動(dòng)作或狀態(tài)。

擴展資料

  Have 表示動(dòng)作,如表示“吃(=eat)”“喝(=drink)”“拿(=take)”“收到(=receive)”“度過(guò)(=spend)”等時(shí),在用法應注意以下幾點(diǎn):

  (1) 可用于進(jìn)行時(shí)態(tài),但一般不用于被動(dòng)語(yǔ)態(tài)。如:

  誤:Lunch is had by him.

  正:He is having lunch. 他在吃中飯。

  (2) 不與 got 連用。如:

  誤:I’d like to have got a look at it.

  正:I’d like to have a look at it. 我想看看它。

  (3) 一般不用縮略式。如:

  誤:We’d a good time at the party.

  正:We had a good time at the party. 我們在晚會(huì )上玩得很高興。

  (4) 構成否定式和疑問(wèn)式時(shí),必須用助動(dòng)詞 do。如:

  誤:When had you breakfast?

  正:When did you have breakfast? 你什么時(shí)候吃早餐?

  表達將來(lái)時(shí)的幾種結構:

  be going to do

  表示最近打算進(jìn)行的事,具有一定的目的性和計劃性.(這種安排既有可能是主語(yǔ)做出的,也有可能是別人安排 的)

  We are going to have a meeting tomorrow.

  表示即將要發(fā)生的事情,不可避免要發(fā)生的事情.(多用于表天氣)

  It's getting cloudy. It is going to rain.