I don't know you were here应该是个病句吧?是否与I had not idea that you were here意思相同吗?

I don't know you were here应该是个病句吧?是否与I had not idea that you were here意思相同吗?
I don't know you were here应该是个病句吧?是否与I had not idea that you were here意思相同吗?

I don't know you were here应该是个病句吧?是否与I had not idea that you were here意思相同吗?
是有点错,应该是I didn't know,过去不知道,现在知道了
后面那句也有点问题,应该是had no idea that. 如果是这样 意思就是相同的

shi