May's government said in a statement it was "confident it can achieve a bold and ambitious deal that will work in the interest of the whole U.K".
Reflecting on Britain's longtime European Union membership, Davis says that "there is more that unites us than divides us" despite the June 23, 2016 referendum in which Britain chose to break away from the 27 other member nations. The talks are due to get under way at 10:00 BST.
Talks with the European Commission's chief negotiator Michel Barnier will focus on the status of expats, the UK's "divorce bill" and the Northern Ireland border. It left an image of a dysfunctional Britain coming up against a well-oiled European Union negotiating machine.
"Our big problem is that we have no picture, no idea at all, what the British want", said German Manfred Weber, the head of the EPP Christian Democrat group in the European Parliament.
With Britain's negotiations on the terms of its departure from the European Union set to begin on Monday, the country risks skills shortages and losing business if it ends freedom of movement without a new plan for attracting workers, the report by the National Institute of Economic and Social Research and the Chartered Institute of Personnel and Development said.
He told the BBC Radio 4 Today programme: 'The important thing now is to be as positive as we can.
Still, British Foreign Secretary Boris Johnson remained upbeat Monday and thinks that the Brexit negotiations will yield "a happy resolution that can be done with profit and honor for both sides".
The negotiations kick off in Brussels on Monday with Britain under pressure for stalling the talks and entering the negotiations without a working parliamentary majority fully in place.
May had promised to take Britain completely out of the bloc's common trading area and slash the number of people coming from the EU.
A spokesman for the Department for Exiting the European said: "We believe that the withdrawal process can not be concluded without the future relationship also being taken into account".
There are widespread questions over whether Britain may soften its Brexit goals outlined before the election, which include taking the United Kingdom out of the EU's single market for goods and services and the bloc's customs union.
Commons leader Andrea Leadsom said suspending next year's speech would help MPs and Lords build the "broadest possible consensus for our Brexit plans". "And we want to try to solve the hard things as well as possible".