The sentence is correct and usable in written English.
You would use it when you are telling someone to start a particular task. For example: "Let's get down to the task of painting the walls."
ONWARD & UPWARD WITH THE ARTS about the RV industry's spring season when the networks, the sponsors & advertising agencies get down to the task of deciding which regular programs the public is going to be confronted with during the coming fall & winter, and about David Susskind, of Talent Associates, Ltd., as a salesman for some of his programs.
It took too long for both management and chapel to bury their suspicions of the other's motives and get down to the complicated task of comparing roles and salaries across a combined operation that incorporated two newspapers and a website – each with a distinctive pay structure of its own.
In 2014 the talks will get down to the tough task of trading concessions.
It should be avoided, too, as officials in Florida get down to the arduous task of recounting the ballots.
It's really time for smart marketers to stop pretending, stop using shortcuts and get down to the hard task of adding value to people's lives with their messaging.
Professor Barbara Sahakian, a leading neuroscientist at the University of Cambridge, explained it to me in scientific terms: "Our recent study published in Neuropharmacology suggests that healthy people use smart drugs, like Modafinil, to get down to and complete tasks that they have been putting off, because these tasks seem more enjoyable when taking these drugs".
We still have over 200 square brackets in the relevant text, so we must really get down to the very hard task of removing those square brackets and completing a clean text in good time for our capitals, for our governments, to analyze the document carefully and submit it to the Summit.
Both men's budget plans were merely for the budget "overview" that Congress is supposed to pass before they get down to the much-harder task of the appropriations bills where every last dollar is accounted for.
At the end of this month, the experts and Nobel laureates assembled to undertake that very task will get down to business.
The most difficult task, he says, is scraping layers of paint from walls, to get down to the original surfaces.
