what do you think of 后面加动词的什么形式?

问题描述:

what do you think of 后面加动词的什么形式?
是加动词的原形 还是加动词的现在分词 还是什么别的形式?

名词,动名词
what do you think of my plan.你认为我的计划怎样?
what do you think of playing volleyball?你认为(我们去)打排球如何?