B2 First Speaking Part 3: Do Not Decide Too Early

The most common way to lose B2 First Speaking Part 3 is to answer it too well, too early.

Cambridge's sequence is explicit. You discuss the prompts for two minutes. Then the examiner asks you to make a decision.

A pair who pick an answer in the first thirty seconds have finished the task before the part they are assessed on has started.

SpeakShark is free for practising the discussion half, three AI conversation sessions a day with no card, each capped at five minutes and four turns.

In this guide: what Part 3 actually is · the order matters · why early deciders run dry · what Cambridge says to practise · the partner problem · practising without a partner · where it sits · what we could not verify · how we researched this · FAQ

Key takeaways

The examiner gives you a question and some written prompts.
You discuss for two minutes, then are asked to decide, with one minute for that.
The decision instruction is a separate step, not part of the discussion.
Cambridge's skills list is mostly interaction, and includes disagreeing.
The whole test is 14 minutes per pair, or 20 minutes per group of three.

What Part 3 actually is

Cambridge's description:

Conversation with the other candidate. The examiner gives the students a question and some written prompts. The students discuss these together for two minutes. The examiner will then ask them to make a decision together about the topic they have been discussing.

Three things are in that paragraph, in order: a question with prompts, a two minute discussion, and then a decision task.

Note that the question is stated. You are not guessing what you are meant to be doing, and the prompts are written and in front of you. Part 3 is not a memory task, and candidates who stall here have not forgotten the topic.

The order is the whole thing

Step	What it asks	Time	What it is not
1. Discussion	Talk about the written prompts together	2 minutes	Not a race to an answer
2. Decision	Agree on one, together	1 minute	Not a summary of step 1

Two stages with different goals, and the examiner marks the boundary between them by asking a new question.

Stage one is exploratory. You are covering prompts, comparing them, saying why one appeals and another does not. Nothing has to be concluded, and no prompt has to be dismissed.

Stage two is convergent. Now you close, and one minute is not long. The register changes: stop opening new ideas, start narrowing. "So shall we go with..." is worth more in that minute than another good observation.

Why early deciders run dry

Here is how the failure actually plays out, and it is common enough to be worth naming.

A pair reads the prompts. One says the first option is best. The other agrees. That took twenty seconds, and there are a hundred left.

What follows is usually silence, then repetition, then the examiner waiting. The task has been completed and the clock has not moved.

The mistake is treating Part 3 as a problem to solve rather than a conversation to have. The prompts are there to generate discussion, and the assessment is watching how you discuss. Reaching the right answer quickly is not the skill on display.

Practically, that means keeping options open on purpose:

Do not accept the first suggestion. Even if you agree, say why, and then say what the alternative would offer.
Cover more than one prompt. There are several for a reason.
Use "although" and "on the other hand". They keep a point alive rather than closing it.
Save your preference. You will need something to bring to the decision minute.

What Cambridge says to practise

Cambridge's list for this part is long and revealing:

Exchanging ideas, expressing and justifying opinions, agreeing and / or disagreeing, suggesting, speculating, evaluating, reaching a decision through negotiation, etc.

Count how many of those are things you do to another person. Exchanging. Agreeing or disagreeing. Suggesting. Negotiating. Only speculating and evaluating can be done into empty air.

That is why Part 3 resists the preparation most candidates do. You can learn fifty phrases for expressing an opinion and still be unable to hold a two minute exchange, because the difficulty is not producing language, it is producing it in response to something you did not choose.

Note too that agreeing and / or disagreeing is on the list. Disagreement is not a risk to manage, it is material. The Council of Europe's own B2 descriptor is about interacting "with a degree of fluency and spontaneity that makes regular interaction with native speakers quite possible without strain for either party", and a two minute exchange of unanimous agreement demonstrates very little of that. CEFR levels explained for speaking covers what the level is measuring.

The partner problem

What if the other candidate talks over you, or barely speaks at all?

A dominant partner. Coming back in politely is an assessable skill, not an interruption. "Can I just say", "That's true, although", and using their name are all normal and all better than waiting for a gap that never comes.

A silent partner. Inviting them in is the task, not charity. "What do you think about this one?" does two jobs: it shows interaction and it produces something for you to respond to.

You are not competing for airtime. Helping the other candidate speak makes your own performance better, because it gives you more to react to.

Practising without a partner

The honest position: you cannot fully rehearse a paired task alone, and any guide claiming a worksheet solves this is selling the easy half.

What you can rehearse alone is every component:

Reacting to a prompt you have not seen. Speed of response, not quality of idea.
Justifying an opinion aloud, in one breath, with no run-up.
Disagreeing politely, which is a specific, learnable set of moves.
Holding an option open rather than closing it.
Closing under a clock. One minute timer, reach a decision out loud.

The closest substitute for the real thing is talking with something that answers what you actually said, because that reproduces the one quality a worksheet cannot: not knowing what comes next. Role play scenarios for speaking practice and finding an online speaking partner are the two routes, and a free daily session keeps the volume up between them. Twelve daily speaking drills from B1 to C1 and a 30 day plan to improve speaking give it a structure.

Where Part 3 sits in the test

Part	What it is	Time
1, Interview	Conversation with the examiner about you	2 minutes
2, Long turn	A pair of photographs, you speak uninterrupted	1 minute per candidate, plus a 30-second response
3, Collaborative task	A question and written prompts, then a decision	2 minute discussion, then 1 minute to decide
4, Discussion	Further discussion on the same topic as Part 3	4 minutes

The whole test is 14 minutes per pair, or 20 minutes per group of three.

Part 3 feeds directly into Part 4, the discussion, which Cambridge says covers "the same topic as the task in Part 3" and runs four minutes. So a Part 3 where you actually engaged hands you positions and reasons to carry forward. A Part 3 you closed in thirty seconds leaves you starting Part 4 cold with four minutes to fill. That dependency is the strongest practical argument for not rushing the decision.

Two details about the room, both from Cambridge: there are two examiners, one conducting the test and handing out the booklet and one who listens, and one of them could be examining remotely. Examiners may also enter marks on a mobile phone app, so a phone in the room is routine.

For the full format see our Cambridge B2 First speaking overview and Part 1, the interview. The same task exists one level up with a longer clock, covered in C1 Advanced Part 3 and the C1 Advanced format. If nerves rather than language are the obstacle, why your English speaking is not improving and online methods to build confidence in English are the better reading, and how to improve English pronunciation helps if clarity is what slips under pressure.

What we could not verify

We have not reproduced the assessment criteria. Cambridge publishes its own scales and we are not paraphrasing band descriptors.

We have not published sample prompt sheets. Cambridge publishes sample papers, and those are the right source for real task content.

We could not find published group-of-three timings for Part 3 at B2, only the 20 minute total for a group of three. Cambridge does publish separate group timings for the equivalent task at C1 Advanced.

We are not stating pass rates or average scores by part. We found no attributable figure.

How we researched this guide

The Part 3 description, the skills list, the two minute and one minute timings, the other three parts, the 14 and 20 minute totals, the two examiner setup, the remote examiner note and the marking app detail all come from Cambridge English's B2 First and B2 First for Schools exam format page, read directly in a browser.

We quoted the description in full because the sequence is the argument. Cambridge writes discussion first, then "the examiner will then ask them to make a decision", and that word "then" is what summaries drop when they compress Part 3 into "discuss and decide". Compressed that way, the part reads as one task with one goal, which is exactly the misreading that causes pairs to close it in thirty seconds.

The B2 descriptor comes from the Council of Europe's global scale rather than a summary of it, because "without strain for either party" describes a two-way exchange, not a pair of monologues.

Cambridge notes that the formats are the same for both the digital and paper-based exams, so this applies whichever version you sit.

Practise speaking, from SpeakShark

SpeakShark is an AI English speaking practice app, and it is our pick for Part 3 because of what the part actually demands. Any resource can hand you prompts. None of them can be surprised by what you say and answer it, which is the exact skill being assessed. You talk, the AI answers what you actually said, and you get speaking feedback while the conversation is still going. The free tier gives basic feedback; the detailed pronunciation and grammar breakdown is on Premium.

Being straight about the limits: a free session runs five minutes with four turns, which suits daily practice of the component skills rather than simulating a full paired exam.

Start free with three sessions a day and no card. Paid sessions run ten minutes with unlimited turns. Limits are on the pricing page, and how it works walks through a full session.

We are a speaking improvement tool. We are not an exam preparation provider, and we are not affiliated with Cambridge English, the IELTS partners, Pearson or any exam board. For test format, booking and official practice material, go to the exam body directly. Use SpeakShark to make your spoken English stronger, and use official material to learn the test.

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Sources

Cambridge English, B2 First for Schools and B2 First exam format: the Part 3 description and skills list, all four part timings, the 14 and 20 minute totals, the two examiner setup, the remote examiner note and the marking app detail
Council of Europe, CEFR Table 1, common reference levels global scale: the B2 descriptor, including interaction "without strain for either party"

FAQ

What is B2 First Speaking Part 3?

It is the collaborative task. Cambridge describes it as a conversation with the other candidate in which the examiner gives the students a question and some written prompts, and the students discuss these together for two minutes. The examiner then asks them to make a decision together about the topic they have been discussing, which is a separate one minute task.

How long is B2 First Speaking Part 3?

A two minute discussion followed by a one minute decision-making task, so three minutes in total. The whole Speaking test runs 14 minutes per pair of candidates or 20 minutes per group of three, which makes Part 3 a little over a fifth of the test and the second longest part after the four minute discussion in Part 4.

When am I supposed to make the decision in Part 3?

After the discussion, not during it. Cambridge's sequence is explicit: the students discuss the prompts together for two minutes, and the examiner will then ask them to make a decision. A pair that settles on an answer in the first thirty seconds has closed the task before the discussion it is being assessed on has happened.

What does Cambridge say to practise for Part 3?

Exchanging ideas, expressing and justifying opinions, agreeing and or disagreeing, suggesting, speculating, evaluating, and reaching a decision through negotiation. Most of those describe something you do to another person rather than something you say alone, which is why a memorised phrase list underperforms here compared with the other parts.

Do I have to agree with the other candidate?

No. Agreeing and or disagreeing appears in Cambridge's own list of what to practise, so disagreement is part of the task rather than a risk. A pair who agree with everything for two minutes have removed most of the material they could be assessed on, and they usually run out of things to say well before the discussion time is up.

How do I practise Part 3 without a partner?

You cannot rehearse the paired task alone, but every component skill can be practised solo: reacting to a prompt you have not seen, justifying an opinion aloud, disagreeing politely, and closing under a one minute clock. Practising against something that answers what you actually said reproduces the unpredictability a worksheet cannot.