was/were done 和 have done 的区别

done 和 was/were done 区别 have done和had done的区别 have done 和 has done 的区别 being done 和was /were done的用法和区别 老师说being done 是放在介词之后的, was done和was been done的区别 can have done 和could have done 的区别 could have done和would have done的区别 should have done和could have done的区别? have done和have been done 的区别, could have done 和 might have done 的区别 should have done 和should not have done的区别 it was done 和 It has been done 的区别