A real grammar library
Hundreds of study notes covering sentence structure, tenses, cohesion, vocabulary, and the errors examiners notice most — written in plain language and linked together so one lesson leads to the next.
Band 9 Vault turns scattered IELTS preparation into one connected study space: structured grammar notes, full listening and reading mock tests with instant band scores, and short daily drills that keep your weak spots from becoming exam-day surprises.
Free to use · No card needed · Your scores follow you to every device
Hundreds of study notes covering sentence structure, tenses, cohesion, vocabulary, and the errors examiners notice most — written in plain language and linked together so one lesson leads to the next.
Sit complete listening tests with real audio, or reading papers with the passage beside the questions as in the real exam. Both are timed and marked for you, with a band estimate the moment you finish and the exact questions you slipped on.
Short, focused practice for spelling, True/False/Not Given reading, error correction, and vocabulary recall — small enough to finish in a break, frequent enough to actually stick.
Every test and drill is recorded against your account, so you can watch your listening score climb instead of guessing whether the studying is working.
Take a mock test or a quick drill. Your first score tells you where the real weakness sits.
Follow the connected notes for that skill instead of reading everything in a random order.
Return to practice, watch the score move, and repeat until the skill feels automatic.
Sentence structure, tenses, articles, prepositions, linking words, collocations, and the error patterns that quietly cap your writing band. Every note is a page you can read, save, and return to.
Open the library → How it worksTest first, read the result, fix the grammar behind the mistakes, then test again. Five steps that tell you what to study now and what can safely wait.
See the five steps →IELTS listening is marked out of 40, and the raw score converts to a band from 0 to 9. Every mock test in Band 9 Vault scores you on this scale, so you always know how far the next half-band actually is.
| Correct answers | Band score | What it means |
|---|---|---|
| 39–40 | 9.0 | Expert listener — almost nothing slips past you. |
| 37–38 | 8.5 | Very high accuracy, occasional spelling loss. |
| 35–36 | 8.0 | Strong enough for competitive university entry. |
| 32–34 | 7.5 | Above the bar for most postgraduate courses. |
| 30–31 | 7.0 | The common requirement for study and migration. |
| 26–29 | 6.5 | Solid, but distraction and paraphrase still cost you. |
| 23–25 | 6.0 | Meets many undergraduate requirements. |
| 18–22 | 5.5 | Detail and spelling are the usual leaks here. |
| 16–17 | 5.0 | Foundation work will move this fastest. |
| 13–15 | 4.5 | Focus on vocabulary and number/date recognition. |
These bands are the widely published conversion for IELTS Academic listening and are used here as an estimate. Your official band comes only from a real test sitting.
No coaching centre, no fixed schedule. You need material that is ordered for you and practice that marks itself, because nobody else is going to check your answers.
You already know the test format. What you need is to find the specific skill holding the score at 6.5, and drill it until it stops leaking marks.
Preparation has to fit around a job or a degree. Short drills and saved progress mean a ten-minute session still counts toward the target.
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IELTS Academic. The grammar, vocabulary, and listening material also helps General Training learners, but the writing and strategy notes target the Academic paper.
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Band 9 Vault is a free, independent study site for IELTS Academic. It exists because IELTS preparation is usually scattered across a dozen places: grammar in one book, listening audio on a video site, vocabulary in a notebook, and no record of what is actually improving.
Everything sits in one place and is connected. Study notes cover sentence structure, tenses, cohesion, vocabulary, punctuation, and the errors examiners notice most. Full listening and reading mock tests run on the real clock and mark themselves the moment you submit. Short drills cover spelling, True/False/Not Given reading, error correction, and vocabulary review. Every result is recorded, so the site can tell you where you actually stand rather than where you feel you stand.
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IELTS Academic. The grammar, vocabulary, and listening material also helps General Training learners, but the writing and strategy notes target the Academic paper.
Yes. A listening test runs 40 questions with real audio on a 32-minute countdown, and a reading paper gives you three passages and 40 questions in 60 minutes. Both match the computer-delivered format and mark your answers the moment you submit.
Your correct answers out of 40 are converted using the standard IELTS band table for that paper — the listening table, or the Academic reading table, which is marked slightly harder. A paper with fewer than 40 questions is put on the 40-question scale first, so every band means the same thing. It is an estimate for practice, not an official result.
Most learners moving half a band need four to eight weeks of consistent practice, and a full band usually takes longer. Steady daily drills move the score faster than occasional long sessions.
Take one mock test before studying anything, so you have a real number to work from. The How it works page sets out the whole order, and why testing first beats reading first.
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This feels backwards, and it is the most useful thing you can do. A listening or reading paper takes under an hour and gives you a number. Without that number you are guessing at your own level, and learners almost always guess wrong in one direction or the other. Do not revise for it. A score that flatters you is worth nothing.
After you submit, every question is listed with your answer beside the right one. Do not skim it. Go through the ones you got wrong and put each into a group: did you mishear the word, not know the word, misread the question, or run out of time? Four different problems, four different cures. Most learners discover that one group is far larger than the rest, and that group is your real work.
The note library is arranged by what actually goes wrong, not by chapter order. If your errors are tenses, start with the tense notes; if sentences fall apart in writing, start with clauses. Save a note with the star and it waits for you on your profile. Reading a note you do not need is time you did not spend on the one you do.
Ten minutes of spelling, True/False/Not Given, error correction, or vocabulary review beats a three-hour session at the weekend. The vocabulary drill schedules each word to come back just before you would have forgotten it, so the words you find hard return more often than the ones you know.
After a week or two of drills, sit another paper. Your profile keeps every result with its band, so you can see whether the line is moving. If two papers in a row show no change, the problem is not effort — it is that you are practising the wrong thing, and step 2 needs doing again.
Half a band usually takes four to eight weeks of steady practice. A full band takes longer. Anyone promising faster than that is selling something. What moves the number is consistency: a short session most days beats a long one now and then, every time.
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| Coverage | 6 complete transformations covering all visual types |
|---|---|
| Last reviewed | 2026-04-12 |
| Next audit | 2026-05-12 |
| Known gaps | Advanced synthesis for 3+ visual combinations |
WHY THIS MATTERS
Every transformation shows specific UPGRADE PATTERNS you can replicate. These are real Band 6 errors → Band 8 fixes from actual test preparation.
Each transformation shows:
Band 6 Response (Weak):
"This graph shows sales of three products from 2010 to 2020. Overall, all three products
went up. Product A went up the most. It started at 50 and went to 150. Product B also
went up but not as much. It went from 40 to 120. Product C went up too, from 30 to 100.
Product A was better than the others. All products sold more at the end."
Analysis - Why This Is Band 6:
Band 8 Response (Strong):
"The line graph illustrates the sales performance of three products over a decade
(2010-2020). Overall, all three products demonstrated significant growth, though at
divergent rates, with Product A substantially outperforming its competitors.
Product A exhibited the most dramatic increase, surging from approximately 50 units
in 2010 to 150 units by 2020, representing a threefold expansion. Growth remained
relatively consistent throughout the period, though a notably steeper trajectory
emerged between 2015 and 2018. Product B displayed more moderate growth, increasing
from 40 units to 120 units, with acceleration particularly evident in the latter
half of the decade. Conversely, Product C demonstrated the slowest expansion, rising
from 30 units to 100 units, with a plateau apparent between 2012 and 2015 before
resuming gradual growth.
By 2020, the gap between Product A and Product C had widened substantially to 50 units,
indicating increasing market divergence. The data suggest that early adoption and
sustained momentum distinguished the highest-performing product."
Specific Upgrades Made:
| Aspect | Band 6 | Band 8 |
|---|---|---|
| Opening | "shows sales" | "illustrates sales performance" |
| Trend verbs | "went up" | "surged/exhibited/demonstrated" |
| Comparisons | "A was better" | "substantially outperforming" |
| Specificity | "went to 150" | "rising from...to...representing X% growth" |
| Turning points | None identified | "Between 2015-2018, notably steeper trajectory" |
| Structure | Linear list | Grouped analysis (intro, details, conclusion) |
| Precision | "all went up" | "divergent rates" |
Band 6 Response (Weak):
"The chart shows spending in five departments. Finance has the most money at 4.2
million. Marketing has 2.1 million. IT has 2.7 million. HR has 1.8 million. Operations
has 3.2 million. So Finance is the biggest. HR is the smallest. The difference between
Finance and HR is 2.4 million. Finance got much more money than the others."
Analysis - Why This Is Band 6:
Band 8 Response (Strong):
"The bar chart represents departmental budget allocation across five organizational
divisions in 2024. Overall, financial resources were distributed unevenly, with Finance
receiving a disproportionately large allocation while HR received the most limited budget.
Finance dominated the budgeting landscape, securing £4.2 million, equivalent to approximately
32% of total expenditure. This substantially exceeded all other departments. Operations
received the second-largest allocation at £3.2 million (24% of total), followed by IT at
£2.7 million (21% of total). Marketing and HR received considerably more modest allocations
at £2.1 million and £1.8 million respectively, collectively representing only 23% of the
total budget.
The disparity between the highest and lowest-funded departments totaled £2.4 million,
reflecting a 233% difference in allocation levels. Notably, Finance's budget exceeded
HR's by more than double, suggesting significantly divergent organizational priorities.
The data indicate a clear hierarchy of resource allocation, with financial management
and operational functions receiving substantially greater investment than human resources
and marketing."
Specific Upgrades Made:
| Aspect | Band 6 | Band 8 |
|---|---|---|
| Intro | "shows spending" | "represents departmental budget allocation" |
| Percentages | Absent | "approximately 32% of total expenditure" |
| Grouping | Listed separately | "collectively representing 23%" |
| Comparisons | "much more" | "233% difference in allocation" |
| Analysis | None ("biggest/smallest") | "disproportionately large" |
| Conclusion | Absent | "Clear hierarchy of resource allocation" |
| Language | Informal | Academic/professional |
Band 6 Response (Weak):
"This pie chart is about energy sources in 2024. Fossil fuels is the biggest part
at 58%. Renewables are 28%. Nuclear is 14%. So fossil fuels is more than renewables
and nuclear together almost. Renewables are growing. This is good because the environment.
Fossil fuels are bad because pollution."
Analysis - Why This Is Band 6:
Band 8 Response (Strong):
"The pie chart illustrates the energy source composition globally in 2024, revealing
a continued dependence on conventional energy sources despite the renewable transition.
Fossil fuels dominate the energy portfolio at 58%, representing more than half of global
energy production. This commanding share reflects the persistent reliance on coal, oil,
and natural gas in international energy systems. Renewable energy sources account for 28%
of the total, indicating an emerging but still-limited proportion of global energy supply.
Nuclear energy contributes a smaller yet significant portion at 14%, supporting roughly
one-seventh of global energy production.
Notably, renewable energy combined with nuclear sources represents only 42% of total
energy supply, highlighting the continued dominance of fossil fuels despite increasing
environmental pressures for transition. The data suggest that while renewable adoption
is accelerating, the existing global energy infrastructure remains overwhelmingly dependent
on conventional sources. Achieving energy sector transformation toward sustainability
would require substantially accelerating the transition away from fossil fuels and
expanding renewable capacity considerably."
Specific Upgrades Made:
| Aspect | Band 6 | Band 8 |
|---|---|---|
| Opening | "is about" | "illustrates...revealing" |
| Percentages | Listed only | "more than half" + significance |
| Analysis | None ("is bad") | "commanding share reflects persistent reliance" |
| Relationships | "more than...almost" | "renewable + nuclear = 42%" |
| Opinion removal | Present ("good/bad") | Objective data interpretation |
| Conclusion | Missing | Connected to global context |
Band 6 Response (Weak):
"The table shows revenue in four quarters. Q1 has 2.3 million. Q2 has 2.8 million.
Q3 is 3.1 million. Q4 is 2.9 million. So it goes up then down. Revenue went up from
Q1 to Q3. Then it came down in Q4. The highest is Q3 and the lowest is Q1. The difference
is 0.8 million."
Analysis - Why This Is Band 6:
Band 8 Response (Strong):
"The table presents quarterly revenue figures across a financial year, revealing a
cyclical revenue pattern with pronounced mid-year peaks.
Revenue demonstrated progressive growth during the first three quarters, commencing
at £2.3 million in Q1 and escalating to £3.1 million by Q3, representing a 35% increase.
This growth trajectory accelerated particularly between Q2 (£2.8 million) and Q3 (£3.1
million), suggesting heightened commercial activity during the third quarter. Notably,
Q3 represented the revenue zenith, surpassing Q1 by £0.8 million (approximately 35%).
However, revenue contracted in Q4 to £2.9 million, declining by approximately 6% from
the Q3 peak. This quarter-on-quarter decline, while moderating the overall annual growth,
remained substantially higher than opening-quarter figures. Overall, annual revenue
trajectory demonstrates a characteristic cyclical pattern common to many retail and
service sectors, with mid-year peaks and end-of-year consolidation reflecting seasonal
business dynamics. The net effect across the year yielded an overall increase of £0.6
million (26% growth from Q1 to Q4), indicating positive annual revenue performance
despite Q4 seasonal contraction."
Specific Upgrades Made:
| Aspect | Band 6 | Band 8 |
|---|---|---|
| Trend description | "goes up then down" | "cyclical...with pronounced mid-year peaks" |
| Calculations | Listed; no context | "35% increase", "6% decline" |
| Pattern recognition | "highest/lowest" | "Q3 represented the revenue zenith" |
| Interpretation | None | "characteristic cyclical pattern...seasonal dynamics" |
| Structure | Linear list | Grouped analysis with contextual interpretation |
Band 6 Response (Weak):
"The diagram shows how to make a car. First, materials come in. Second, the engine
is built. Third, the body is assembled. Fourth, wheels are put on. Fifth, the car
is painted. Sixth, quality is checked. Finally, the car is shipped to the store.
So the process has seven steps."
Analysis - Why This Is Band 6:
Band 8 Response (Strong):
"The diagram outlines the manufacturing sequence for automotive production, comprising
seven sequential stages that transform raw materials into finished vehicles ready for
market distribution.
The production process commences with raw material procurement, wherein component
suppliers deliver engineered parts to the manufacturing facility. Factory workers then
undertake engine assembly and integration, a critical stage requiring precision engineering
and quality verification. Concurrently, the vehicle chassis and bodywork are assembled
through automated and manual welding techniques. Following frame completion, component
integration occurs, including the fitting of wheels, electrical systems, and interior
components through specialized assembly stations.
The subsequent finishing phase involves multi-stage painting processes to achieve durability
and aesthetic standards. Rigorous quality control procedures are implemented throughout,
with comprehensive inspection protocols at each quality checkpoint to ensure adherence
to manufacturing specifications. Finally, completed vehicles undergo final inspection and
preparation before shipment to distribution centers and dealerships for market delivery.
In total, the manufacturing sequence represents an integrated process requiring coordination
across multiple specialized departments and technologies, with each stage building upon
previous completion to achieve the final product."
Specific Upgrades Made:
| Aspect | Band 6 | Band 8 |
|---|---|---|
| Intro | "how to make a car" | "manufacturing sequence...comprises seven stages" |
| Terminology | "put on" | "integration", "assembly stations", "welding" |
| Detail | Simple lists | Purpose & technical context explained |
| Sequencing | First/Second/etc. | "commences", "concurrently", "subsequently" |
| Connections | Listed separately | "building upon previous completion" |
| Purpose | Missing | "ready for market distribution" |
Band 6 Response (Weak):
"There are two charts here. The first shows immigration from 2010 to 2020. The second
shows employment rates. Immigration went up and employment went up too. So more people
came and more people got jobs. This is good for the economy. The numbers show immigration
is 2.5 million and employment is 85%. Both things increased."
Analysis - Why This Is Band 6:
Band 8 Response (Strong):
"The paired charts illustrate the relationship between net migration patterns and
employment rates over a decade (2010-2020), revealing a complex relationship between
immigration trends and labor market outcomes.
The left chart demonstrates net migration increased substantially from approximately
1.5 million in 2010 to 2.5 million by 2020, representing a 67% expansion. This growth
trajectory displayed particular acceleration between 2015 and 2018, before moderating
slightly in 2019-2020. Conversely, the right chart illustrates employment rates,
commencing at 72% in 2010 and rising to 85% by 2020, indicating a 13 percentage-point
improvement in labor market participation.
Notably, the temporal trajectory of these indicators reveals interesting divergence:
immigration surged most sharply between 2015-2018, yet employment rate growth proved
more gradual and consistent throughout the period. This pattern suggests that while
immigration increased substantially, employment expansion proceeded at a more measured
pace, potentially indicating labor market absorption challenges or structural mismatches
between immigrant skill profiles and available employment opportunities. By 2020, the
combined effect yielded both increased migration and elevated employment, though the
relationship appears non-linear rather than directly proportional."
Specific Upgrades Made:
| Aspect | Band 6 | Band 8 |
|---|---|---|
| Connection | "went up and went up too" | "Temporal trajectory...reveals interesting divergence" |
| Analysis | Lists separately | Compares rates and interprets relationship |
| Opinion removed | "good for economy" | Objective analysis of relationship |
| Temporal precision | None | "particular acceleration 2015-2018" |
| Interpretation | Simple | "potential labor market absorption challenges" |
Task 1 Visual Types: Task 1 Visual Type Playbook
Task 2 Writing: Task 2 Error Analysis by Type
Grammar Foundation: POS in Writing Application
Error Correction: Error Transformation Patterns
Related Mastery Guides:
Return to Dashboard:
✅ Uses 2026 Design System | ✅ Status block included | ✅ Callouts for critical content | ✅ Cross-linked learning path