When he had gone halfway he turned around and stared at the scene—his
wife and Catherine scolding and consoling as they stumbled here and there among
the crowded furniture with articles of aid, and the despairing figure on the
couch, bleeding fluently, and trying to spread a copy of Town Tattle over the
tapestry scenes of Versailles.
Scolding和consoling和bleading和trying为什么是ing形式，是表示这个句子都是一个名词形式吗？那为什么连接词as后面接的stumbled又不是ing形式了？
