"fuel doubt" is a correct and usable phrase in written English.
It means to increase or intensify doubt or uncertainty. You can use it in a variety of contexts, such as in a persuasive essay, to describe the actions of someone causing doubt or in a news article discussing a controversial topic. Example: The conflicting statements from the two witnesses only served to fuel doubt in the jury's minds about the defendant's innocence.
There are worries that the specter of military power behind the scenes could fuel doubts about the government's legitimacy and transparency, and thus continued instability.
He fuels doubt and fear, leaving people vulnerable; he denigrates his opposition en masse, blaming the world on them; and he raises himself up above the nonexistent wreckage.
But the authorities have recovered few weapons from Tivoli Gardens — only 13 firearms, as of midday Friday — fueling doubt among residents that the security forces had secured the neighborhood.
That has fueled doubts on Capitol Hill and among the American public that the Afghan war can be won.
The dearth of information has fueled doubts about the government's assertion that the security services were able to solve the crime so quickly.
But Mr. Reynolds, a conservative lawyer who has called for a redefinition of affirmative action, faced pointed questions from the chairman of the committee, Senator Edward M. Kennedy of Massachusetts, and other Democratic senators, fueling doubts over the likelihood of Senate approval.
Reports on Saturday that Mr. Kuze had accepted 100 million yen, or $920,000, from a condominium developer only further fueled doubts about his ability to serve as the head of the agency.
Broad's overtures likely fueled doubts about Buetner's allegiances among Tribune brass, which had already clashed with him over issues including budgets and advertising strategy, newspaper analyst Ken Doctor said.
The delay fueled doubts among scientists and health professionals that it would ever come out and that it would venture a bold stance in tackling what Dr. Satcher today acknowledged was "the most controversial and sensitive" issue he has faced as surgeon general.
Donald Trump's claims that if he loses in November it will be due to a "rigged" election have sparked strong bipartisan criticism from election lawyers, donors and a former member of Congress who warn that the Republican candidate's words are dangerous, fueling doubts about the election's legitimacy and potentially leading to voter intimidation.
