帮分析下句子成分!I'm very comfortable speaking French now.
问题描述：
帮分析下句子成分!I'm very comfortable speaking French now.
为什么用speaking呢?
答
speaking French 是主语补语.对主语 I 进行补充说明.相当于I'm speaking French.
I'm very comfortable 是个主系表结构.