convinced 用法convinced that his son was out of danger,he fell asleep at ease after two sleepless nights.为什么用 convinced主语是he 为什么不用convincing呢？

convinced 用法convinced that his son was out of danger,he fell asleep at ease after two sleepless nights.为什么用 convinced主语是he 为什么不用convincing呢？
convinced 用法
convinced that his son was out of danger,he fell asleep at ease after two sleepless nights.为什么用 convinced
主语是he 为什么不用convincing呢？

convinced 用法convinced that his son was out of danger,he fell asleep at ease after two sleepless nights.为什么用 convinced主语是he 为什么不用convincing呢？
convinced that his son was out of danger作状语,后边的逻辑主语是he
过去分词表状态
be convinced ...(确信.）