many people who work in a office have a boss.这里的work后面的have为什么能不加to

题目

many people who work in a office have a boss.这里的work后面的have为什么能不加to

答案

have 在这是 有 的意思.
have to 是不得不的意思.
这里的语境显然是 有的意思.