21.   One can also of course speculate on the future!

22.   She chattered happily as Patrick drove along the Marylebone Road, speculating on the miracle that had brought John and Angela back from the dead.

23.   In the absence of systematic research on these questions one can only speculate on the likely consequences of changes in employment practices.

24.   Benjamin could give no enlightenment but speculated on what news Irvine might bring.

25.   It is difficult to speculate on the discrepancies with previously published studies.

26.   Before speculating on the value of such huge quantities of information it is important to see this as part of larger systems of business information and decision taking.

27.   The courts make their calculations on the basis of the current provisions and do not speculate on future changes.

28.   Mr Roberts refused to speculate on how much of the VAT charge Manweb could absorb.

29.   BR has rightly refused to speculate on how the animals came to be on the line in the first place.