But political conflict and public opposition have frustrated attempts to carry out the law.

Since the first trial started, in 1998, he said, city authorities have repeatedly frustrated its attempts to buy or rent places to hold worship services.

But, in fact, many companies all but frustrate their customers' attempts to exercise that control.

The properties of large land owners who had been able to frustrate previous attempts were eliminated from the map.

The commission's limited powers have also frustrated its attempts to investigate high prices in markets where competition does exist.

If their connection makes fighting between themselves inadvisable, it also frustrates most other attempts at individual agency.

God frustrated their attempts by creating a confusion of languages so the builders could no longer understand each other and the work halted.

The President is trying to frustrate attempts by the Opposition to tie him to the scandal.

That worry frustrated his attempts at sleeping and nagged at him before the meeting.

But analysts said the verdict was likely to frustrate Wyeth's attempts to resolve its liability from the diet drug.