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    haven t 是什么時(shí)態(tài)

    回答
    瑞文問答

    2024-10-22

    havent done sth, 這是現(xiàn)在完成時(shí)。表示某個(gè)動(dòng)作已經(jīng)完成或者是過去發(fā)生的動(dòng)作對(duì)現(xiàn)在造成的影響(動(dòng)作是否繼續(xù)由上下文而定)

    擴(kuò)展資料

      時(shí)間和動(dòng)作的種類

      1.一般現(xiàn)在時(shí)(do/does)

      2.一般過去時(shí)(did)

      3.一般將來時(shí)(will/shall do),(be going to do)

      4.一般過去將來時(shí)(would/should do),(was/were going to do)

      5.現(xiàn)在進(jìn)行時(shí)(be doing)

      6.過去進(jìn)行時(shí)(was/were doing)

      7.將來進(jìn)行時(shí)(will/shall be doing)

      8.過去將來進(jìn)行時(shí)(would/should be doing)

      9.現(xiàn)在完成時(shí)(have/has done)

      10.過去完成時(shí)(had done)

      11.將來完成時(shí)(will/shall have done)

      12.過去將來完成時(shí)(would/should have done)

      13.現(xiàn)在完成進(jìn)行時(shí)(have/has been doing)

      14.過去完成進(jìn)行時(shí)(had been doing)

      15.將來完成進(jìn)行時(shí)(will/shall have been doing)

      16.過去將來完成進(jìn)行時(shí)(would/should have been doing)