现在完成时被动语态的构成为

主语＋have/has＋been＋过去分词

如：

Mykeyhasbeenstolen.

Mykeyshavebeenstolen.

Iamnotgoingtotheparty,Ihaven’tbeeninvited.

含有情态动词的被动语态

情态动词＋be＋过去分词

Anotehadbetterbelefttohim.

Teenagersshouldbeallowedtoweartheirownclothes;