Question

What do you say? What did you say? What did you said?

What do you say? What did you say? What did you said? 这几种说法到底哪个是正确的？谢谢！

Answer 1

What
did
you
say?
因为"说"便是已经说过了,是过去时,所以选则这个.至于What
did
you
said?
这个是语法错误.助动词已经是过去式则动词保持原形.
What
do
you
think?在征求/询问别人的想法时使用一般现在时.所以在此时选用这句是正确的.
What
did
you
think?这个也没有语法上的错误.在特定环境下选用此句也为正解.比如在询问别人曾经的某种想法(不作考虑,相当于普通问句)时此句作"你当时是怎么想的"即为正解.
----可能有些地方我没有表述清楚.见量.