He could not remember ever having seen the man before.

She didn't remember ever having seen any of this before.

He couldn't remember ever having seen anything quite like it.

He could not remember ever having seen a more beautiful girl.

In fact, no one could remember having seen or spoken to her all day.

At any rate, I don't remember having seen it before.

He seemed to remember having seen her change into a fish, and back again.

She couldn't remember ever having seen anything like this on the news services.

In fact, no one remembered having seen him since the middle of the night.

He couldn't remember ever having seen her off the bridge before.