1.   Analysts say the electricity regulator may be concerned by the constantly diminishing number of independent electricity companies with stock market listings.

2.   Analysts were not sure if those overall numbers would concern antitrust regulators.

3.   Both federal and state regulators are concerned that the combined company, to be called Primergy, would control too much of the electric power market in the region.

4.   But a simple reduction in the price British Telecom pays for MCI may fall short of the kind of change that would concern regulators.

5.   But the regulators are concerned about whether it can raise cash within its organization and whether the insurers that have promised to reimburse it will have problems.

6.   European regulators were concerned that it would reduce competition for Internet access.

7.   In a signal that regulators were concerned that the rule was being flouted, the commission issued a legal bulletin on the subject in August.

8.   Safety regulators have been concerned about the tendency for ridges of ice to form behind the de-icing boots, disrupting airflow.

9.   Some analysts said the regulator is concerned that in the European study, more patients taking the drug died than those taking the placebo.

10.   That is an issue that can sometimes concern antitrust regulators.