请问这个英语句子中的as 是什么词性？能分析下语法结构吗？

Question

A number of senior people were regarded as likely to occupy the now vacant post

Answer 1

这句话可以这么翻译：很多年长的人（或者有资历的人）被看做有可能获得现有的空缺职位。其中regard
as
是一个词组，把....当作（认为）。这句话其实是被动态语句，我给你整成一般句型你理解下：We
regarded
senior
people
as
likely
to
occupy
the
now
vacant
post。希望能帮助你。