He explains that he wants to ask the Engineers to prevent his death from old age.

Prosecutors have said they will seek the death sentence in a second trial and opposed the defense motion asking Judge Baxter to prevent it.

I have come here today to ask you to prevent a gross injustice from being enacted.

They are asked in order to prevent dumb mistakes later on.

I simply asked Mycroft to prevent my feet from leaving tracks.

The banks were asked to prevent lending rising above the level prevailing at the time.

I would ask you to prevent this in future, otherwise I too would like to speak for another two minutes.

He had the chaplain write up a special prayer asking the Almighty to prevent the Chinese from doing anything stupid.

He particularly asked for steps to prevent the use of international banks for moving drug dealers' money across borders.

The schools are asked to prevent teen-age pregnancies.