"As We All Know" - 是 (shì) as a Manner Adverb in Chinese

"As We All Know" - 是 (shì) as a Manner Adverb in Chinese "是 (shì)" is a verb that means "to be" or "is." In Chinese grammar, it can also function as a way to indicate the manner or method in which something is done. In this case, 是 (shì) can be used as a 是...的 (shì...de) structure to indicate the way or manner in which something happens. For example: "他是用中文学习的。(Tā shì yòng zhōngwén xuéxí de.)" He learned it by studying Chinese. "这是怎么发生的？(Zhè shì zěnme fāshēng de?)" How did this happen? So, in the sentence "as we all know," 是 (shì) can be used to indicate the way or manner in which something is known or understood.