Sentence examples for not exactly sure from inspiring English sources

I'm not exactly sure.

He is not exactly sure.

"I'm not exactly sure why".

"We're not exactly sure what happened".

Even now, I'm not exactly sure what.

"I'm not exactly sure," the surgeon said.

"I'm not exactly sure," he replied.

But I'm not exactly sure that's right".

And he is not exactly sure how it happened.

"We're not exactly sure what that means," Mr. Lagos said.

I was not exactly sure what this all meant.