MPs will have their say on the next steps for Brexit later as Theresa May urges them to “do their duty”.

Writing in the Daily Mail, the prime minister said the UK remained “firmly on course” to leave the EU with a deal “if MPs hold their nerve”.

A number of amendments to the government negotiating strategy will be voted on in the Commons on Wednesday.

The votes are not on Mrs May’s Brexit deal itself, but they will show what support she can or cannot get.

You can read about all the expected amendments here.

After her Brexit deal was overwhelmingly rejected by MPs last month, the prime minister has been trying to seek assurances from the EU to address MPs’ concerns.

She is still in talks with Brussels over the Irish backstop policy in her plan – which aims to prevent a hard border returning to the island of Ireland – and has assured MPs they will get to vote again on the deal by 12 March – just 17 days before the UK’s scheduled leaving date.

However, on Tuesday, Mrs May bowed to pressure to accept that the 29 March deadline might not be achievable, and promised MPs a vote on whether or not to delay Brexit or rule out leaving the EU without a deal if her plan is rejected for a second time.

In the Mail, Mrs May stressed that she did not want to see the Article 50 process extended and her “absolute focus” was on getting a deal in place for 29 March.

The prime minister’s critics have accused her of “kicking the can down the road”, but she insisted her efforts to persuade the EU to make concessions had “already begun to bear fruit”.

What does it mean to table an amendment?

The process starts with the government putting down a motion. It is a plain piece of text, asking the House to note the prime minister’s most recent Brexit statement – made on Tuesday – and that discussions between the UK and the EU are ongoing.

This then allows MPs to table amendments – alternative options – to that motion, setting out their proposals on what they think should happen next.

Speaker John Bercow makes the final call on which amendments are put to a vote, and we won’t know which ones he has chosen until later on Wednesday. Voting is likely to take place around 1900 GMT.

Labour will table an amendment calling on the House to support its alternative Brexit plan, which would include a “comprehensive customs union” and close alignment with the EU in the future.

This would mean no customs checks or charges would be imposed on goods moving between the UK and the rest of Europe.

If that proposal is voted down, Jeremy Corbyn has said the party would move to formally back another referendum “in order to prevent a damaging Tory Brexit” or no-deal outcome.