Man might no longer even exist in present times by the time they were done.

More important, if that voice truly existed in our time, we would have heard of it long since.

But you've told me that you can exist in other times.

But when the 2 planets exist in different times, they can very well seem to occupy the same place.

I'm sorry, I know that the subject did not exist in your time.

They had entered a room that could have existed in Drake's own time.

Many of such differences and the occasional tensions they create still exist in modern times.

They certainly possessed better structural materials than had existed in his time.

Records of it exist in ancient times through until the seventeenth century.

By contrast, instances, or members, of such an abstract thing might exist in many different places and times.