The phrase "endeavored to prevent" is correct and usable in written English.
You can use it when someone has taken steps to stop something from happening. For example: "The police officers endeavored to prevent a crime from occurring."
There were more disturbances in various parts of London as the strikers endeavored to prevent the handling of all goods.
In the Declaration of Independence, we find a specific complaint that King George III is putting too many limits on immigration: "He has endeavored to prevent the population of these states; for that purpose obstructing the laws for naturalization of foreigners; refusing to pass others to encourage their migration hither, and raising the conditions of new appropriations of lands".
In addition, after witnessing the vulnerability to hurricanes, the affected governments endeavored to prevent such a disaster from occurring again.
Among their complaints against King George III, written in the Declaration of Independence, was that, "He has endeavored to prevent the population of these states; for that purpose obstructing the laws for naturalization of foreigners; refusing to pass others to encourage their migration hither" It applies just as well to our government today.
He has endeavored to prevent the population of these states, paragraph 9. Keep as pleasant as possible while debating.
Antitrust authorities in Europe, the US and around the world should focus on how the patent system works in practice, and they should endeavor to prevent it from being misused to undermine healthy competition.
It endeavors to prevent HIV transmission by providing vulnerable groups with access to accurate HIV/AIDS-related information, and by ensuring the availability, accessibility and affordability of high-quality condoms [ 19].
Thus, Congress, and the American people in particular, must support our shared endeavor to prevent Afghanistan from sliding back into violence and a no man's land.
Thus, the U.S. Congress, and the American people in particular, must support our shared endeavor to prevent Afghanistan from sliding back into a no man's land.
"Our endeavor was to prevent sending the wrong signal that a public-sector debt cut would represent, reducing the pressure to make adjustments not just for Greece but for all the program countries," said Norbert Barthle, a senior member of the Ms. Merkel's party.
"All of our endeavors are to prevent war from breaking out and maintain peace," Moon said in his speech.
