not having finished his homework,he had to having lived in here for many years,he knows两个句子都是用现在分词的完成时做状语,而句子的时态一个是一般现在时,一个是一般过去时,这样可以吗?第二个句子是：having lived in BJ for many years，he knows……
问题描述：
not having finished his homework,he had to having lived in here for many years,he knows
两个句子都是用现在分词的完成时做状语,而句子的时态一个是一般现在时,一个是一般过去时,这样可以吗?
第二个句子是：having lived in BJ for many years，he knows……
答