Tory rebel Dominic Grieve, who tabled the amendment that led to a second government defeat on Brexit, urged the prime minister to delay Brexit if her European Union deal was rejected by MPs.
Meanwhile, Work and Pensions Secretary Amber Rudd said she was "committed" to ensuring that the United Kingdom did not leave without a deal.
Hunt continued: "If this deal is rejected, ultimately what we may end up with is not a different type of Brexit, but Brexit paralysis".
Liberal Democrat Brexit spokesman Tom Brake said: "Chris Grayling has lost the plot".
But Mrs May is still facing a massive defeat in the crunch vote on Tuesday - with hardline Remainers and Brexiteers mobilising in a bid to thwart her plans. "That is something that we would regret for many, many generations".
Chris Grayling urged his Conservative colleagues to back Theresa May's deal, saying that millions of people who voted to leave the European Union would feel "cheated" if Brexit was reversed.
The minister said Bercow had shown that he was "willing to frustrate the government at every opportunity", and it was not possible for the minority Tory administration to control what happened in parliament.
The PM has also faced further opposition to her deal from former Brexit secretary Dominic Raab, who used an article in the Sunday Telegraph to urge MPs to vote down Mrs May's "bad" deal and send a message to Brussels that the United Kingdom "will not be bullied".
The EU is adamant the legally binding 585-page withdrawal agreement can't be reopened, but EU officials are looking for diplomatic wording that could sway reluctant United Kingdom lawmakers.
"You, the British people, voted to leave", Mrs May wrote.
"We are checking with Downing Street what the clarifications could amount to" to help May get the deal approved", he said.
Mrs May was boosted on Thursday by two Tory backbenchers - her former policy adviser George Freeman, and Trudy Harrison - indicating they would back her deal as well as by a call from Japanese PM Shinzo Abe for the United Kingdom to avoid a no-deal.
Lawmakers are set to vote on May's Brexit deal on Tuesday, after she shelved plans for a vote in December when it became clear that not enough lawmakers from her own party or others would back the deal she agreed with Brussels.
But when asked whether he would support revoking Article 50, he said: "Absolutely, I would do what's right.
I am committed to getting the best outcome for this country, which is supporting the Prime Minister's deal".
Northern Ireland Secretary Karen Bradley said a no-deal exit would create a "feeling of unrest".
"I'll do what the right thing is, and the right thing for me is to make sure we don't crash out with no deal". "Projectfear? Project terror? Extremism more likely if we get failed Brexit which leads to lower living standards and less money for services".
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