Module 7 · Advanced Grammar & Spiral R&UoE · Lesson 26

Modality & Hedging

Calibrated certainty across genres

CEFR C245–60 minModality & hedging systemsCore

Teacher Notes

Warm-up · Section 1

4 min

Get talking

activity

How sure is 'sure'?

Rank from MOST to LEAST certain: 'must', 'is bound to', 'is likely to', 'could well', 'might', 'could conceivably'. Where do you draw the line into 'speculation'?

reflection

Over-claiming has a cost

A scientist says 'this WILL cure cancer' when the evidence supports 'may help reduce'. What does the over-claim cost — even if it's exciting?

discussion

Under-claiming has a cost too

Same scientist hedges to 'might possibly, perhaps, in some cases…'. What does that cost?

Grammar focus · Section 2

8 min

The 5-point certainty scale

Quick rule

5 = CERTAIN (must, is, will): evidence is conclusive. 4 = HIGH PROBABILITY (is highly likely to, will almost certainly, would): strong evidence, minor doubt. 3 = MODERATE (is likely to, may well, would tend to): evidence leans this way but isn't decisive. 2 = POSSIBLE (may, might, could): plausible, not predicted. 1 = SPECULATIVE (could conceivably, it is not inconceivable that, one could imagine): floated, not asserted. The C1 task is to MATCH the modal/hedge to the evidence — over-claim loses credibility; under-claim loses information.

Examples

✓

5 (certain): 'The deadline is non-negotiable.'

✓

4 (high probability): 'The deadline is highly likely to hold.'

✓

3 (moderate): 'The deadline is likely to hold, on current trajectory.'

✓

2 (possible): 'The deadline may hold, but there's slippage in two streams.'

✓

1 (speculative): 'It is not inconceivable that the deadline holds — but I wouldn't bet on it.'

Quick check

Question 1.The evidence is STRONG but not conclusive. Best calibration:

Question 2.Evidence is THIN — only a plausible hypothesis. Best:

Question 3.Best RECALIBRATION response to a sceptic:

Question 4.Why is 'it is LIKELY to' more PRECISE than 'maybe'?

Question 5.Which is the FLAGGED-EVIDENCE hedge (signals the basis, not just the doubt)?

Answer all items, then check.

Vocabulary · Section 3

6 min

Words & phrases to own

to be likely to

level-3 certainty; positive prediction with evidence base

e.g. The policy is likely to reduce wait times by year-end.

Use it now

Use 'is likely to' on a prediction you'd genuinely defend.

↻ Recycled in speaking

to be highly likely to

level-4 certainty; strong evidence, minor doubt

e.g. The deadline is highly likely to hold.

Use it now

Distinguish 'likely' (3) from 'highly likely' (4) on a real example.

↻ Recycled in speaking

it would appear that

evidence-flagged hedge; signals 'based on what we can see'

e.g. It would appear that the change is producing the intended effect.

Use it now

Use 'it would appear that' instead of 'I think' on a data-based observation.

↻ Recycled in writing

on the balance of the available evidence

formal evidence-flag for level 3 or 4 claims

e.g. On the balance of the available evidence, the trial supports the new protocol.

Use it now

Use the phrase in a 30-second mini-summary of any topic.

↻ Recycled in writing

arguably

marks a defensible but contestable claim — level 3 with a bias

e.g. Arguably, the second proposal is the stronger of the two.

Use it now

Use 'arguably' where 'definitely' would over-claim.

↻ Recycled in writing

could conceivably

level-1 speculation; plausible, not predicted

e.g. The outcome could conceivably go either way.

Use it now

Use 'could conceivably' for a real-life uncertainty you face this week.

↻ Recycled in speaking

Activate the language

Pair / group discussion

Which level of the scale do you DEFAULT to — and what evidence levels does that match (or mismatch)?
Where in your professional life would CALIBRATION change how seriously you're taken?

Complete each stem about yourself

On the balance of the available evidence, ______.…
It would appear that ______ , though ______.…
Arguably, ______ — but I'd want to test ______.…
It could conceivably ______ , though the evidence is thin.…

Rank & justify

Rank from MOST to LEAST certain.

is bound to
is highly likely to
is likely to
may well
could conceivably

Quick write (60 seconds)

Take ONE claim ('The new policy will work'). Rewrite it at each of the 5 levels. 50 words total.

Pronunciation · Section 4

3 min

Stress for calibration, not for doubt

Hedges fail when delivered with rising/uncertain intonation — they then SOUND like doubt rather than precision. Calibrated hedges are delivered with FALLING tone on the hedge phrase and steady volume. 'It is LIKEly to HOLD ↘' — falling, level. 'It is likely to hold?' — rising — undoes the calibration. Practise saying 'on the balance of the available evidence' as a CONFIDENT speaker citing data, not an UNSURE speaker apologising.

It is HIGHly LIKEly ↘ to HOLD ↘.
ARguably ↘ , the SECond proPOSal ↘ is the STRONGer ↘.
On the BALance ↘ of the aVAILable EVidence ↘ , the TRIal SUPports ↘ the new PROtocol ↘.
It WOULD apPEAR ↘ that the CHANGE ↘ is PROducing ↘ the inTENDed efFECT ↘.

Reading · Section 5

8 min

Same finding — three calibrations

Three short summaries of a real study (internal team brief)

Same finding — three calibrations

Same data, three writers, three certainty levels. Which one would you trust to deliver bad news as well as good?

Calibration comparison · Pre-listening

VERSION A — over-claimed. The new onboarding flow WILL increase week-1 retention by 12%. Implementation across all regions is the obvious next step.

VERSION B — over-hedged. The new onboarding flow might possibly, in some cases, perhaps tend towards an increase in week-1 retention — though it's hard to say. Maybe further work is needed.

VERSION C — calibrated. On the balance of the available evidence, the new onboarding flow IS LIKELY to increase week-1 retention, with a point estimate of 12% (95% CI: 6–18%). The effect appears stable across two of three regions; further evidence is needed before wider rollout.

Question 1.What's wrong with VERSION A?

Question 2.What's wrong with VERSION B?

Question 3.Why is VERSION C the C1 model?

Question 4.Which phrase in C is the EVIDENCE FLAG?

Question 5.Why does C's 'further evidence is needed' RAISE credibility, not lower it?

Answer all items, then check.

Listening · Section 6

8 min

Listening P3 (spiral) — long interview with calibrated stance

Notes

Pre-listen brief — P3 long interview

▸Listen for: where the speaker UP-CALIBRATES (becomes more certain) and DOWN-CALIBRATES (becomes less).
▸Note any RE-CALIBRATION in response to challenge.
▸Decide: is the speaker calibrated, over-claiming or over-hedging?

Listening audio

Tap play to listen. Scrub the bar or use ± 5 s to jump.

Show transcript

Interviewer (English, m):So the new treatment cures the condition.

Prof Otieno (Kenyan, m, clinician-researcher):I'd step that back. On the balance of the available evidence, the treatment is highly likely to reduce symptom severity in moderate cases — that's level 4 certainty for that subgroup. For severe cases, it is likely to help, but the trial wasn't powered to be definitive there. The word 'cure' is, frankly, over-claiming.

Interviewer:So patients shouldn't get their hopes up?

Prof Otieno:That's the opposite over-claim. The evidence supports cautious optimism. It would appear that moderate-case outcomes improve; arguably, this is the most important sub-group clinically. I'd be honest about what we don't yet know without writing off what we do.

Interviewer:If you had to bet?

Prof Otieno:Bet on improvement, not on cure. And bet on improvement being LARGER in moderate cases than severe — that's where the calibration sits.

Question 1.Prof Otieno's first move is to:

Question 2.On severe cases, his calibration is:

Question 3.He responds to 'patients shouldn't get their hopes up' by:

Question 4.'It would appear that…' signals:

Question 5.His closing 'bet on improvement, not on cure' is best described as:

Answer all items, then check.

Visual stimulus · Section 7

3 min

The 5-point certainty scale (with anchor phrases)

Anchor each level to ONE phrase you trust. In speaking, retrieve the phrase, not the level.

Notes

Certainty scale — anchor phrases

▸5 — CERTAIN: 'is / will / must.' Use only when evidence is conclusive.
▸4 — HIGH: 'is highly likely to / would almost certainly / is bound to.'
▸3 — MODERATE: 'is likely to / may well / on the balance of evidence, would appear to.'
▸2 — POSSIBLE: 'may / might / could / arguably.'
▸1 — SPECULATIVE: 'could conceivably / it is not inconceivable that / one could imagine.'
▸Recalibration line (use openly under challenge): 'You're right — I'd step that back to level ___.'

Discuss in pairs

Place a real claim you've made this week on the scale. Was your phrasing calibrated to the right level?

Exam skills · Section 8

3 min

Speaking P4 — defending a calibrated claim under examiner challenge

Strategy

1.Open with the CALIBRATED claim, not the certain one.
2.Name the basis ('on the balance of the available evidence') — short, formal.
3.When pushed, ask yourself: is the push-back making me OVER-claim or UNDER-claim? Recalibrate accordingly.
4.Recalibration RAISES the band — examiners read it as pragmatic range.
5.Never collapse to 'maybe' under pressure — name the new level.
6.Close with a concrete level: 'so I'd land at: it is highly likely to…'

Example

PROMPT: 'Will AI tools improve education?' ANSWER: 'On the balance of the available evidence, AI tools are LIKELY to improve specific tasks — feedback turnaround, drafting practice — for self-directed learners. They are NOT YET likely to lift outcomes across whole systems; the evidence isn't there. So I'd land at level-3 for individual gains, level-1 for system-wide gains. Different claims, different calibrations.'

Practice · Section 9

7 min

Fill in the blank

Question 1.On the ____ of the available evidence, the trial supports the new protocol.

Question 2.It would ____ that the change is producing the intended effect.

Question 3.The deadline is ____ likely to hold — slippage is minor and contained.

Question 4.It is not ____ that the outcome could go the other way.

Question 5.____ , the second proposal is the stronger of the two — though I'd want to test it.

Question 6.You're right — I'd ____ that back to: it is likely to, not will.

Answer all items, then check.

Writing · Section 10

4 min

Put it in writing

Your task

Take a single paragraph (~60 words) about a real change at work or in your community. Rewrite it at THREE certainty levels (5, 3, 1) without changing the underlying content.

• Three versions; same content; different calibration.
• Each version 50–70 words.
• Annotate each with the level and the trigger phrase you used.

Before you submit

☐ Level-5 version uses 'is / will / must' — only where the evidence supports it.
☐ Level-3 version uses 'is likely to / it would appear that / on the balance of'.
☐ Level-1 version uses 'could conceivably / it is not inconceivable that'.
☐ No version collapses into vague 'maybe' phrasing.

Show model answer

LEVEL 5: 'The four-day week reduces fatigue. Employees report better focus and the absence rate is lower. Implementation will continue across the company in Q4.' (Only defensible if you genuinely have conclusive evidence.) LEVEL 3: 'On the balance of the available evidence, the four-day week is likely to reduce fatigue and is associated with a lower absence rate. Wider implementation would appear sensible, pending further data from the larger teams.' LEVEL 1: 'It is not inconceivable that the four-day week reduces fatigue; the early signals are encouraging, but the evidence is thin. One could imagine wider benefits — but we are not yet in a position to claim them.'

Speaking · Section 11

6 min

Make it a real conversation

Speaking — claim, defend, recalibrate (8 minutes). One partner makes a CLAIM (level of certainty self-chosen). The other partner PRESSES ONCE: 'on what evidence?' Claimant must either defend the level (citing evidence) or recalibrate openly to a named new level. Swap. Four rounds each.

After each round, partner names the OUTCOME.

Did the claimant CALIBRATE, OVER-CLAIM or UNDER-CLAIM?

Calibrated

Claim matched the evidence; defence or recalibration was clean. Band-5 territory.

Over-claimed

Claimed level 5 / level 4 on level-3 evidence; recalibration was forced.

Under-claimed

Hedged to incoherence; the reader can't tell what the claimant thinks.

Collapsed under pressure

Folded to 'maybe' under challenge instead of holding or naming a new level.

Useful phrases

On the balance of the available evidence, ______ is likely to ______.
It would appear that ______ — though ______.
You're right — I'd step that back to level ___ : ______.
Arguably, ______ — and I'd defend that to level 3.
I'd hold at level 4: highly likely, not certain, because ______.

Optional · Teacher-led

Teacher Activities

Stretches if time allows. ~18 min total

Homework · Section 12

Take-home

Take it home

writing

Find one news headline that claims certainty (level 5). Rewrite the headline AND the opening paragraph at the calibration the article's actual evidence supports.

vocab

Build a personal phrase bank — 3 anchors per level on the 5-point scale, plus 3 recalibration lines. Memorise 8.

grammar

Complete 8 open-cloze items (provided in Teacher Mode) focused on modal/hedge collocations: 'on the ___ of the evidence', 'it would ___ that', 'arguably', 'is ___ likely to'. 4-minute time limit.

speaking

Record a 60-second answer to: 'Will remote work outlast the decade?' Use exactly TWO different calibrations (one for the short-term claim, one for the long-term claim). Listen back: are the levels named clearly?

Recap · Section 13

Wrap-up

What you've learned

Calibration ≠ vagueness. The C1 task is to pick the LEVEL the evidence supports.
5 = certain · 4 = highly likely · 3 = likely · 2 = possible · 1 = speculative. Anchor each to one phrase you trust.
Recalibrate OPENLY under challenge — it raises the band, not lowers it.
Evidence-flag hedges ('on the balance of evidence', 'it would appear that') signal basis, not doubt.
Tone falls on the hedge phrase — rising tone undoes the calibration.

Lesson complete

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