thus contributing to promoting the establishment of a harmonious community.
contributing为现在分词作结果状语,与介词to搭配,promoting...为动名词短语作介词to的宾语。意为:为促进...做出贡献。整体是一个现在分词短语。
People with a sense of community responsibility are more likely to adhere to the rules and regulations set by their community, and consciously conduct themselves politely and guard against such minor offences as making a loud noise, dropping litter, smoking, and spitting, thus contributing to promoting the establishment of a harmonious community.
请问句中...contributing to promoting the establishment of a harmonious community,contributing 和 promoting 哪个是动词?以及为什么是ing形式?