How you know

问题描述:

How you know

你是怎么知道的?

口语说法:你是如何知道的?
书面说法:这些事情你都晓得?

你怎么知道的? 这是口语的说法,书面的说法应为How do you know that?

这都被你知道了啊~~

你是怎么知道的?
更正确的说法是:How do you know that ?

I don't understand how you know that?
OR
How do you know that?