All these things happening and I hadn't the slightest clue.

There might be some slight clue in the early ones that would help later on.

I don't have the slightest clue why she picked that day to do it.

"I haven't the slightest clue how to answer either of those questions."

Trouble was, he hadn't the slightest clue how to use it.

I must not let slip the slightest clue as to how I've spent this past night.

What could be done with it, he hadn't the slightest clue.

Her eyes watched mine for the slightest clue to what she should expect.

"He never offered the slightest clue of what was on his mind."

A few minutes ago, I didn't have the slightest clue what the hell we were going to do.