Not a single human being, no one to get me out of there.

Or perhaps they were all aspects of a single being.

He'd have given anything to see a single human being.

Whether either of them loved a single individual human being was less certain.

While you start your analysis of what happened, I'm going to be looking at every single human being who had a hand in the construction.

It wasn't simple at all; not if the single human being in question had no experience.

But there was not a single human being in sight.

To their vast surprise, they did not meet a single human being.

The single being of the plant thus falls into two parts.

I am only a single human being, he told himself.