ne
1
particle indicating that a previously asked question is to be applied to the preceding word ("What about ...?", "And ...?")
2
particle for inquiring about location ("Where is ...?")
3
particle signaling a pause, to emphasize the preceding words and allow the listener time to take them on board ("ok?", "are you with me?")
4
(at the end of a declarative sentence) particle indicating continuation of a state or action
5
particle indicating strong affirmation
我觉得不错,你?
I think it's quite good, what do you think?
为什么?
Why?
你在等什么
What are you waiting for?