No real clue what you want. . A: Start speaking! B: I am, is the mic even on yet? Be still. keep calm and breathe. I still have not guessed what you were thinking. Still, I will attempt an answer, hoping to get somewhere close. . Are you still here? Still reading this? :) The air was still. Nothing moved. Not a leaf stirred. . A: What is that machine over there with all the water flowing. B: It's a still. I'm making whiskey.

I've never heard anyone say "on yet" except for in a sentence like Nanren888 proposed: "Is the microphone on yet?" However in that instance, "on" is referring to whether or not the microphone is functioning and if it is turned on. "Still" means something has been going on and is continuing to happen. For example: 1. "The girl is still running" -- This means the girl has been running and is continuing to do so in the present 2. "The computer is still on" -- This means the computer was on before and is continuing to be turned on in the present

还没开始中文意思就是表示这件事情或者物品还没有使用或者马上要进行时就可以这样说，比如，你今天起这么早，我还没开始做早餐呢。在中国像还没开始相近意思还有还没来得及。 还没结束的意思是表示正在进行的任何实物或人，就是可以表示这个正在进行中就可以了，比如，赶紧的，我们的聚会还没结束呢，现在还在继续嗨皮。 至于你们国家的说法我就不理解了，不好意思，如果我说的有不足或者错误的地方，你们尽可以留言，谢谢。

No real clue what you want. Context?