He would not speculate on whether he believed the British Prime Minister could win a third vote on the deal but said he wanted "to try and help Theresa May as much as possible". Two would be to call an emergency European Union summit to get an extension that could have "onerous conditions".
The EU is poised to agree to Theresa May's request to delay Brexit, a leaked draft document shows.
Warning Remainers that "a People's Vote may not happen", the parliament.uk petition counted 521,000 signatures this morning after 200,000 people signed it overnight to take it past the half a million mark.
"I think it's really extraordinary behaviour for the Leader of the Opposition to behave in really this kind of very juvenile way when the moment demands that we all step up and engage in some serious dialogue to find our way through this chaos and this mess".
However, Ms Soubry, who has previously been a target for pro-Brexit protesters, said: 'I'm not able to go home this weekend, I am not safe. "And those decisions now need to be made".
But if the House of Commons rejects the deal - as it has done twice before - Brexit will take place on April 12, unless Britain has decided by then to take part in this year's European Parliamentary elections.
On Tuesday afternoon, Corbyn and a Labour team including the shadow Brexit secretary, Keir Starmer, had what a party spokesman called constructive talks with the SNP's Westminster leader, Ian Blackford, the Lib Dem leader, Vince Cable, Liz Saville Roberts from Plaid Cymru, and the Green MP Caroline Lucas. The EU27 agreed to offer the United Kingdom an extension to Brexit until May 22 if MPs approve Theresa May's withdrawal agreement next week.
European Union officials said that even if the Brexit deal is voted down, the European Union could still extend Brexit beyond April 12 if Ms.
"The prime minister has said many times she will not countenance revoking Article 50".
The petition, which has crashed the UK Government site a number of times already today, has been signed by more than one million people across the country.
"What is important is that Parliament delivers on the result of the referendum and that we deliver Brexit for the British people", Mrs May said on arrival at the summit.
They called on May to acknowledge "the reckless damage" leaving with no deal would cause and to secure an extension of the 29 March Brexit deadline.
Corbyn was asked if he would consider revoking Article 50 and he did not rule it out.
"Brexit is not a problem of our creation". "Together we represent millions of workers and tens of thousands of businesses".
Northern Ireland's Democratic Unionist Party (DUP), which gives May's government a majority in Parliament, said it was no closer to backing her agreement, the party's Brexit spokesperson said on Thursday, while parliamentary Eurosceptics also said they could never approve something they said would trap Britain in the EU's orbit indefinitely.
French President Emmanuel Macron said the European Council's dual offer to Britain was protecting the bloc's interests and would allow it to "continue working properly".