But we can't waste time right now speculating.

I had no idea what he meant, and I didn't waste time speculating about it.

"But I'm not going to spend a lot of time speculating."

She didn't waste much time speculating but set to work hauling in supplies.

"We can't spend any time speculating on any of that."

The men spent much of their time speculating about what lay on beyond the mountains, and how long it would take to get there.

"Maybe we should gather a few more facts before wasting our time speculating, Uvarov."

I was curious to meet him and had spent a good deal of time speculating on what he would look like.

A few of us were having a wonderful time over brunch at the club, speculating on how long you'd last.

But they spent most of their time speculating why Rachel had not made an official appearance.