Considering the fact that he is in poor health,the company let him retired ahead.这里为什么是retired而不是retire?

问题描述:

Considering the fact that he is in poor health,the company let him retired ahead.
这里为什么是retired而不是retire?

retire 才对
let sb. do sth.

完整的应该是the company let him (be)retired ahead.
这里省略了“be”