"grave determination" is correct and usable in written English.
You can use it to indicate a serious or solemn determination or resolve when faced with a difficult or important task. For example, "She faced the challenge before her with grave determination."
Thus was "Nightingale," Ms. Redgrave's one-woman play, born — from her grief at that now anonymous grave and her determination to memorialize its occupant.
In a journal from a 1950-51 road tour of "As You Like It," Hepburn wrote that she kept her fears of a cold and laryngitis to herself: "I find that people are always ready to bury you and that the only thing that keeps you out of your grave is your own determination to stay out".
Afterward it issued a statement expressing "grave concern" as well as determination to enforce previous resolutions on ending the crisis, including the dispatching of an African-led force to help the government reclaim lost territory.
"Until very recently, and sadly still in some countries, sex determination is based on grave goods.
Chris Grayling, the justice secretary, said the ruling would leave the original authors of the European convention on human rights "turning in their graves" and said it reinforced his determination to curtail the role of the Strasbourg court.
Tonight I want to take a few minutes to discuss a grave threat to peace and America's determination to lead the world in confronting that threat.
"I want to assure the people on behalf of the government that we will respond with determination and resolve to the grave threat posed to the Indian nation," he told reporters.
The question attains an unnerving significance when one considers that the central government has had little of substance to say on the determination of a dispute that could have grave ramifications in the not so distant future.
Fans are split between those eager to get at every unpublished word, and those respectful of their eccentric hero's determination to control his literary legacy from beyond the grave.
