求几个被动语态的句子
一般现在时一般过去时现在进行时过去进行时过去将来时一般将来时现在完成时过去完成时情态动词
句行:1.am/is/are+pp.
2.hadbeen+pp.
3.was/were+pp.
4.am/is/are+being+pp.
5.was/were+being+pp.
6.musthavebeen+pp.
may
can
might}be+pp.
could
7.have/has+been+pp.
8.will+be+pp.
9.to+be+pp.
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