The phrase "a mammoth task that" is correct and usable in written English.
It can be used to describe a very large or difficult task that requires significant effort or resources to complete.
Example: "Completing the project on time was a mammoth task that required the entire team's dedication and hard work."
Alternatives: "an enormous challenge that" or "a colossal undertaking that".
Tackling plastic waste and plastic pollution is a mammoth task that must be shared.
In 2000, he had reorganized Saban's business structure, a mammoth task that required intense focus, and he began taking drugs to prolong his concentration.
The Human Cell Atlas will map out the internal workings of every cell type in the body, a mammoth task that is bound to open up new avenues in medicine.
With the area around the sub too shallow for work boats to approach, even cutting up the sub and removing it would be a mammoth task that would require environmental permits, he said.
Some advocates of cleaning up the nation's nuclear legacy, a mammoth task that is expected to take decades and cost up to $260 billion to complete, said they feared that problems at such a prominent stimulus project could make it more difficult to get financing in the future.
An overall accord is supposed to be concluded in October 2018, but unraveling 44 years of shared lawmaking and cooperation across a vast swath of sensitive policy areas, from fisheries to online privacy, is a mammoth task that looks increasingly hard to achieve.
The realization that AI can take on the task of managing UA for top-grossing apps--a mammoth task that has grown in complexity and beyond the ability of marketers to master it--is capturing the interest and investment of mobile app companies, starting with games.
"There is an absolutely mammoth task that is absolutely imperative" to ease pressure on the border area, Sybella Wilkes, a spokeswoman for the United Nations refugee agency in Geneva, said Wednesday.
In a memorable column late last year, my colleague Alan Cowell compared Europe's present challenges with the mammoth task that faced it in the immediate postwar years.
Cariocas and their political leaders face a mammoth task, one that might be prone to corruption and inefficiency.
Gandhi, the station manager, said cleaning the platforms, concourse and crowded approaches had been a mammoth task but that he hoped to continue the effort.
