Gross negligence or a deliberate effort to deceive had occurred.

But management's strongest efforts have occurred in behind-the-scenes meetings with several players.

The first efforts to build a gazebo occurred in 1896.

The Kerry campaign's legal efforts are hardly occurring in a vacuum.

Yet another effort to clean the marbles occurred in the years 1937-38.

An early effort at malaria prevention occurred in 1896.

Some preliminary efforts in that direction had already occurred in 1913 and 1914.

Nebraska is already 100% public power and several municipal efforts have been occurring in California recently as well.

South Carolina's first effort at nullification occurred in 1822.

The first efforts to establish a state park occurred shortly thereafter but were unsuccessful.