Were any of those worlds inhabited?

A world inhabited by the Mulefa, and Tualapi, large white birds.

A world inhabited by humans and Gallivespians.

At times like these I find the world a strange place to inhabit.

Iawa-colony world, once inhabited by predecessors of the Roamers.

A world suspiciously similar to the one we humans inhabit.

A world inhabited by "decisive, strong men and honorable, fertile women".

But the high-tech world of Bangalore both men inhabit is a place where problem-solving is an art.

The world they tell us now has probably been inhabitable and therefore inhabited by man for millions of years.

In some versions, the set of possible worlds varies depending on which possible world one inhabits.