For the past two years,I have been busy preparing for the examination.请问这句话的主谓宾分别是?

问题描述:

For the past two years,I have been busy preparing for the examination.请问这句话的主谓宾分别是?

这个句子的基本结构是主+系+表,没有宾语.
For the past two years是状语,主语I,系动词have been,busy形容词作表语,preparing for the examination作状语.