e动词 + 动词过去分词
对应时态看be动词时态即可
is/am/are +done
was/were + done
have/has been +done
being done
will be done .等等等等
PS:楼上的,动词过去分词≠动词过去式
e动词 + 动词过去分词
对应时态看be动词时态即可
is/am/are +done
was/were + done
have/has been +done
being done
will be done .等等等等
PS:楼上的,动词过去分词≠动词过去式