Our people have had more than one taste, are willing to speculate endlessly as to the how of it, but the speculation is useless.

One might speculate endlessly, but the nature and the purpose of the Ramans was still utterly unknown.

In the years since, the media speculated endlessly about possible reunions.

You could speculate endlessly about what these men had that grounded them so.

Yoke, the mill boy, speculated endlessly about how the Yeowans would welcome us.

One could speculate endlessly on the future of battery technology.

One could speculate endlessly as to where he has gone to exercise his skills but that would be a waste of time.

We speculated endlessly about what had caused the impact.

To speculate endlessly about Carter's whereabouts or state of mind.

The women, for the most part, kept out of it, though they speculated among themselves endlessly.