is、am、are的過去分詞都是been。
is、am的過去式是was，are的過去式是were。
例句：
1、These files have been zipped up to take up less disk space. 這些文件已經進行了壓縮，以節省磁碟空間。
2、Things might have been different if I"d talked a bit more. 如果當時我再多說一點的話，結果或許會不一樣。
3、He was hand-picked for this job by the Admiral. 他是由海軍上將精心挑選出來擔任這項工作的。
4、I was on my own and these fellows came along towards me. 我正一個人走著，一些傢伙朝我走過來。
5、My cuticles were split and ragged, and my nails unevenly bitten. 我指甲根部的表皮龜裂粗糙，指甲被咬得參差不齊。
is、am、are的過去分詞都是been。
is、am的過去式是was，are的過去式是were。
例句：
1、These files have been zipped up to take up less disk space. 這些文件已經進行了壓縮，以節省磁碟空間。
2、Things might have been different if I"d talked a bit more. 如果當時我再多說一點的話，結果或許會不一樣。
3、He was hand-picked for this job by the Admiral. 他是由海軍上將精心挑選出來擔任這項工作的。
4、I was on my own and these fellows came along towards me. 我正一個人走著，一些傢伙朝我走過來。
5、My cuticles were split and ragged, and my nails unevenly bitten. 我指甲根部的表皮龜裂粗糙，指甲被咬得參差不齊。