She looked for all the world as if she'd seen her third ghost of the day.

I've still never seen a ghost in my whole life.

He was standing like a man who has seen a ghost.

He looked like a man who had seen a ghost.

Right now you have the look of a woman who is seeing ghosts.

People didn't see ghosts in the light of day, did they?

She could still see the ghost of herself there, and his hands moving.

No one must know that you have seen a ghost.

The story goes that you saw a ghost last March.

When I got back, she looked like she'd seen a ghost.