Question

what () your father()用不同形式的do回答,要有分析？

Answer 1

What can your father do? He can +原形的动词或动词短语。
What is your father doing? He is +现在分词或现在分词短语。
What does your fater do? He +单三形式的动词或动词短语。
有时态变化的话把be动词和助动词变一下就行。

Answer 2

what （does） your father (do)?
你爸爸是干什么（工作）的？