Theresa May has said she is “clear” she expects to start talks on leaving the EU as planned by the end of March.
The prime minister also played down the chances of an early general election, saying the next one “should” take place as scheduled in 2020.
The government is appealing against the High Court’s decision that MPs and peers should vote on triggering Brexit.
Mrs May said judges should “specify how” the vote might happen, if ministers are defeated again.
The High Court ruled last Thursday that Parliament should have a say before the UK invokes Article 50 of the Lisbon Treaty – which triggers up to two years of formal EU withdrawal talks.
Labour has said it will not attempt to delay or scupper this process.
