I still haven't the foggiest idea what he was thinking.

I wouldn't have the foggiest idea of what to do.

But I don't have the foggiest idea what to do at this point.

And she hadn't the foggiest idea what to do about it.

The rest of the time they wouldn't have the foggiest idea what's going on.

Where they were to be sent from there, I haven't the foggiest idea.

Not that I had the foggiest idea what was going to play out.

I still didn't have the foggiest idea who she was.

He didn't have the foggiest idea of how to get free.

When she hadn't the foggiest idea herself what was going on.