1. <rp id="zsypk"></rp>

      2. 歡迎來到瑞文網(wǎng)!

        haven t 是什么時態(tài)

        回答
        瑞文問答

        2021-09-03

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

        擴(kuò)展資料

          時間和動作的種類

          1.一般現(xiàn)在時(do/does)

          2.一般過去時(did)

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

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

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

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

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

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

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

          10.過去完成時(had done)

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

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

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

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

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

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

        99热这里只有精品国产7_欧美色欲色综合色欲久久_中文字幕无码精品亚洲资源网久久_91热久久免费频精品无码
          1. <rp id="zsypk"></rp>