sometimes 修饰形容词和steward的问题

2 sometimes 修饰形容词和steward的问题

1. His paternal grandparents, a steward and a housekeeper possessed even less status, having been servants, and Dickens later concealed their background.

问题1:请教曹老师， a steward and a housekeeper 是his paternal grandparents同位语嘛？如果是同位语，为啥不在possessed前加一个逗号将其隔开呢？即His paternal grandparents, a steward and a housekeeper, possessed even less status 另外，还有一个问题就是这个having been servants 是作原因状语么？现在分词having 的主语是his paternal grandparents?

2. Surrounding the column are three sepals and three petals, sometimes easily recognizable as much, often distorted into gorgeous, weird , but always functional shapes.

问题2: 请教曹老师，这种时间频度副词sometimes，often，always修饰形容词也是作状语吗？另外，as much 是形容词的方式状语么？