In recent months, concern has mounted about the activities of such groups.

The restructuring took several months, during which financial problems and concerns mounted.

Concern is mounting on both sides as to whether the season will actually be canceled.

Concern has been mounting that some Federal land banks within the huge system may not survive much longer.

Concern has mounted in recent years as many countries have ignored this prohibition.

Concern over the progress of the cleanup is mounting rapidly here.

Concern mounted last week because the proposed Federal budget agreement included still another big postal rate increase.

My concern for the animal mounted and I hastened to her side.

Although concern was mounting over these disturbing threats to the environment, no major steps had yet been taken to arrest them.

At some point, though, concern may mount about the difficulty of selling a big stake without pushing down the stock's value.