分析这几个句子中的词作什么成分,和语法现象
问题描述：
分析这几个句子中的词作什么成分,和语法现象
1：bill would have loved the internet.
2:it is becoming increasingly influential.
3:it advantage was its mastery of the electronic world.
答
1：bill 是主语 would have loved 做谓语 the Internet 是宾语 虚拟语气
2：it 主语 is becoming increasingly influential 谓语 系表结构
is 是系动词 becoming increasingly influential 是表语；系动词和表语一起构成谓语,不可分割
3：its advantage 是主语 was its mastery of the electric world 谓语 系表结构
was是系动词 its mastery of the electric world 是表语
是指这方面的语法现象吗?