语法分析I can't ensure his being on time.I can't ensure his being on time.这句话为什么要用being?请达人整个句子帮我分析下

语法分析I can't ensure his being on time.I can't ensure his being on time.这句话为什么要用being?请达人整个句子帮我分析下
语法分析I can't ensure his being on time.
I can't ensure his being on time.这句话为什么要用being?请达人整个句子帮我分析下

语法分析I can't ensure his being on time.I can't ensure his being on time.这句话为什么要用being?请达人整个句子帮我分析下
主谓宾结构.
1、情态动词加动词原形,是谓语
2、his being on time是宾语
3、物主代词+动名词短语作宾语