21.   We cannot afford to waste precious time.

22.   We used to grumble that we were wasting time learning a dead language.

23.   There could be many reasons and he was not going to waste time speculating on them.

24.   Peter announced that he had no intention of wasting his time at any university.

25.   Promise me you will not waste your time.

26.   At this point, it suddenly struck me that I was wasting my time.

27.   Too much time has been wasted in sterile debate.

28.   My time is very valuable.

29.   Was sick and tired of wasting her time at long, pointless meetings.

30.   And they become upset when time is wasted.