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πŸ“š Transformation Patterns β€” Reference
Learn these structures, not just vocabulary. In Part 4, it's always about the grammar pattern, not the words.
🟒 Inversions β€” Negative Adverbials
Hardly/ScarcelyHardly had + S + V3 + when…
No soonerNo sooner had + S + V3 + than…
LittleLittle did + S + know / realise + that…
Not onlyNot only did/does/has + S + V + but (S) also…  (auxiliary matches tense)
Never / RarelyNever had + S + V3 / Rarely does + S + V
Under no circ.Under no circumstances should + S + V
Not until / OnlyNot until [clause] + did / will / can / has + S + V  (auxiliary matches tense)
🟒 Inversions β€” Conditional
If I had…→ Had I + V3, S + would have…
If I were to…→ Were I to + inf, S + would…
If you should…→ Should you + inf, S + will/would…
🩷 Modal Perfects
Certainty (past)must have + V3  β€” "She must have left."
Impossibilitycan't have + V3  β€” "He can't have known."
Advisable but not doneshould have + V3  β€” criticism or regret: "You should have called."
Unnecessary actionneedn't have + V3  β€” "She needn't have worried."
Past possibilitymight / could have + V3
🟣 Reported Speech β€” Verb Patterns
verb + to-infoffer, promise, agree, refuse, threaten, decide
verb + obj + to-infremind, advise, warn*, tell, ask, urge, order, invite, encourage
verb + -ingadmit, deny, suggest, recommend, avoid
verb + prep + -ingapologise for, insist on, accuse of, congratulate on, blame for
verb + thatclaim, deny, insist, suggest, complain, warn*  (*warn & deny work in both this row and the one above)
πŸ”΅ Other Key Patterns
have / get + obj + V3  β€” causative: "She had her hair cut."
What + clause + was/is + noun  β€” cleft: "What impressed me was…"
It was not until [time/event] + that + S + V2 (past simple)  β€” no inversion in the that-clause
cf. "Not until [event] did S V" β€” full inversion, no "that"
No matter how / what / who + clause  β€” regardless
despite / in spite of + -ing  β€” although (+ verb β†’ gerund)
have difficulty / trouble + -ing  β€” struggle to
owe + sth + to + sth  β€” "owed his success to…"
unless = if…not  Β·  provided / as long as = if
wish + past simple (present regret)  Β·  wish + past perfect (past regret)
give rise to  Β·  take into account  Β·  turn a blind eye to

πŸ’‘ In the exam: identify the PATTERN first, then fill in the words. Never start with the words.

1

Inversions

Rewrite using inversion. Write your answer, then reveal the model to compare.

⏱ ~15 minutes  Β·  6 questions

Score: 0 / 0
1
"She had barely sat down when the phone rang."
Key word:SOONER3–6 words including SOONER, unchanged
"No than the phone rang."
πŸ’¬ Count your words carefully β€” 3 to 6 only.

Model Answer
"No sooner had she sat down than the phone rang."
Pattern: No sooner + had + subject + past participle + than. Inversion of auxiliary required after "No sooner".
2
"He had just started his presentation when the fire alarm went off."
Key word:HARDLY3–6 words including HARDLY, unchanged
" when the fire alarm went off."
πŸ’¬ The gap here replaces the entire start of the sentence.

Model Answer
"Hardly had he started his presentation when the fire alarm went off."
Pattern: Hardly + had + subject + past participle + when. Do NOT write "Hardly he had started" β€” inversion is mandatory.
3
"She not only passed the exam but also achieved the highest mark in the group."
Key word:ONLY3–6 words including ONLY, unchanged
"Not _________________________, but she also achieved the highest mark in the group."
πŸ’¬ "Not only" triggers inversion of the auxiliary. Count: 6 words exactly.

Model Answer
"Not only did she pass the exam, but she also achieved the highest mark in the group."
Pattern: Not only + did/does/has + subject + base verb. The auxiliary moves before the subject. Count: only(1) did(2) she(3) pass(4) the(5) exam(6) = 6 words βœ“
4
"If he had warned us, we would never have made that mistake."
Key word:HAD3–6 words including HAD, unchanged
"_________________________, we would never have made that mistake."
πŸ’¬ Remove "If" entirely and invert. HAD moves to the front.

Model Answer
"Had he warned us, we would never have made that mistake."
Pattern: Had + subject + past participle = If + subject + had + past participle. Drop "If", invert auxiliary. Count: Had(1) he(2) warned(3) us(4) = 4 words βœ“
5
"She had absolutely no idea that her proposal would cause such controversy."
Key word:LITTLE3–6 words including LITTLE, unchanged
" that her proposal would cause such controversy."
πŸ’¬ "Little did" replaces "She had absolutely no idea".

Model Answer
"Little did she realise / know that her proposal would cause such controversy."
Also accepted: "Little did she imagine / suspect"
Pattern: Little + did + subject + verb (realise / know / suspect / imagine). Inversion required. "Little" here means "not at all".
6
"You should never discuss patient details with unauthorised staff."
Key word:CIRCUMSTANCES3–6 words including CIRCUMSTANCES, unchanged
"Under no _________________________ with unauthorised staff."
πŸ’¬ Very formal register β€” common in legal/official writing. Count: 6 words exactly.

Model Answer
"Under no circumstances should you discuss patient details with unauthorised staff."
Pattern: Under no circumstances + should/must/can/will + subject + verb. Modal moves before the subject. Count: circumstances(1) should(2) you(3) discuss(4) patient(5) details(6) = 6 words βœ“
2

Modal Perfects & Reported Speech

Rewrite the sentence using the key word. Tense changes in reported speech must be applied correctly.

⏱ ~20 minutes  Β·  8 questions

Score: 0 / 0
1
"I'm certain he left his phone in the conference room."
Key word:MUST
"He in the conference room."

Model Answer
"He must have left his phone in the conference room."
Pattern: must have + past participle = logical deduction about the past. "Certain" β†’ "must have".
2
"It was unnecessary for her to stay late β€” the deadline had been extended."
Key word:NEEDN'T
"She _________________________ β€” the deadline had been extended."

Model Answer
"She needn't have stayed late β€” the deadline had been extended."
Pattern: needn't have + past participle = the action was done but wasn't necessary. NB: CAE counts contractions as two words β€” needn't(2)+have(1)+stayed(1)+late(1) = 5 words βœ“
3
"I'm sure she didn't know about the change of plan."
Key word:CAN'T
"She about the change of plan."

Model Answer
"She can't have known about the change of plan."
Pattern: can't have + past participle = logical impossibility about the past. "I'm sure she didn't" β†’ "She can't have".
4
"'Don't forget to bring your identification documents,' the officer told us."
Key word:REMINDED
"The officer our identification documents."

Model Answer
"The officer reminded us to bring our identification documents."
Pattern: remind + object + to-infinitive. "Don't forget to do X" β†’ "reminded sb to do X". The negative in the original becomes positive via "reminded".
5
"'I'm sorry I submitted the report late,' she told her manager."
Key word:APOLOGISED
"She the report late."

Model Answer
"She apologised to her manager for submitting the report late."
Also accepted: "apologised to her manager for having submitted"
Pattern: apologise + to sb + for + -ing. "I'm sorry I did X" β†’ "apologised for doing X".
6
"'Don't skate on the thin ice β€” it's dangerous,' the ranger told us."
Key word:WARNED
"The ranger _________________________ on the thin ice."

Model Answer
"The ranger warned us not to skate on the thin ice."
Pattern: warn + object + not to + infinitive. "Don't do X" β†’ "warned sb not to do X". Count: warned(1) us(2) not(3) to(4) skate(5) = 5 words βœ“
7
"It was a mistake to agree to the terms without reading them first."
Key word:SHOULD
"You agreeing to them."

Model Answer
"You should have read them before agreeing to them."
Also accepted: "should not have agreed without reading them before"
Pattern: should have + past participle = past action that was advisable but not done. "It was a mistake not to do X" β†’ "You should have done X".
8
"'I never told anyone about the confidential meeting,' she insisted."
Key word:DENIED
"She about the confidential meeting."

Model Answer
"She denied having told anyone about the confidential meeting."
Also accepted: "denied telling anyone" / "denied that she had told anyone"
Pattern: deny + -ing or deny + having + V3 or deny + that clause. "I never did X" β†’ "denied doing X".
3

Mixed Transformations

Causative, cleft sentences, emphasis, and more. Identify the pattern before writing.

⏱ ~20 minutes  Β·  8 questions

Score: 0 / 0
1
"A professional photographer took her portrait last month."
Key word:HAD
"She last month."

Model Answer
"She had her portrait taken last month."
Pattern: Causative HAVE β€” have + object + past participle. Someone else does the action FOR the subject. "A photographer took it" β†’ "She had it taken".
2
"Her stage presence was the most impressive thing about the performance."
Key word:WHAT
"_________________________ was her stage presence."

Model Answer
"What was most impressive was her stage presence."
Also accepted: "What impressed me most" (4 words βœ“)
Pattern: What + V + S = the thing that. "The most X thing" β†’ "What was most X". Count: What(1) was(2) most(3) impressive(4) = 4 words βœ“
3
"Regardless of how many times he tried, he could not solve the equation."
Key word:MATTER
"No , he could not solve the equation."

Model Answer
"No matter how many times he tried, he could not solve the equation."
Pattern: No matter how + adjective/adverb + subject + verb = regardless of how. "Regardless of how many times" β†’ "No matter how many times".
4
"She struggled to maintain her composure throughout the interview."
Key word:DIFFICULTY
"She her composure throughout the interview."

Model Answer
"She had great difficulty maintaining her composure throughout the interview."
Also accepted: "had difficulty maintaining"
Pattern: have (great) difficulty + -ing = struggle to. The verb after "difficulty" must be a gerund, never an infinitive.
5
"His remarkable recovery was entirely due to the dedication of the medical team."
Key word:OWED
"He the dedication of the medical team."

Model Answer
"He owed his remarkable recovery to the dedication of the medical team."
Pattern: owe + object + to + source. "X was due to Y" β†’ "S owed X to Y". The preposition TO is obligatory.
6
"She only realised the painting's true value after she had sold it."
Key word:UNTIL
"It was not that she realised its true value."

Model Answer
"It was not until after selling it that she realised its true value."
Also accepted: "until she had sold it"
Pattern: It was not until [time/event] that + S + V. "Only after X did Y" β†’ "It was not until X that Y". Note the obligatory "that".
7
"Only those with a valid press pass will be admitted to the venue."
Key word:UNLESS
"You will not be admitted to the venue pass."

Model Answer
"You will not be admitted to the venue unless you have a valid press pass."
Pattern: unless = if…not. "Only if X" β†’ "not…unless X". UNLESS cannot be followed by a negative β€” "unless you don't have" is wrong.
8
"Although he worked extremely hard, he failed to secure the promotion."
Key word:DESPITE
", he failed to secure the promotion."

Model Answer
"Despite working extremely hard, he failed to secure the promotion."
Also accepted: "Despite his extremely hard work"
Pattern: despite / in spite of + -ing (or noun phrase). "Although + S + V" β†’ "Despite + -ing". Never "Despite he worked".
4

Full CAE Part 4 Simulation

Exact exam format. 6 questions. Complete the second sentence using 3–6 words including the key word.

⏱ ~20 minutes  Β·  Target: under 12 minutes in the real exam

Score: 0 / 0
Instructions: For questions 1–6, complete the second sentence so that it has a similar meaning to the first sentence, using the word given. Do not change the word given. You must use between three and six words, including the word given. Write your answer in the gap. Contractions count as two words.
1"The new infrastructure programme is expected to lead to significant economic growth in the region."
RISE
"The new infrastructure programme is expected to significant economic growth in the region."
πŸ’¬ 3–6 words including RISE
give rise to
Pattern: give rise to = lead to / result in. Always 3 words, no variation possible β€” memorise it exactly.
2"I had absolutely no idea that the situation would escalate so rapidly."
LITTLE
"Little the situation would escalate so rapidly."
πŸ’¬ 3–6 words including LITTLE
did I realise / know / imagine / think that
Several verbs accepted: realise, know, imagine, suspect, think
Pattern: Little did + S + V (inversion). "I had no idea" β†’ "Little did I realise". The word "that" must follow the verb.
3"It was wrong of you to send the message without proofreading it."
SHOULD
"You before sending it."
πŸ’¬ 3–6 words including SHOULD
should have proofread it / should have proofread the message
Also accepted: "shouldn't have sent it without proofreading"
Pattern: should have + V3 = past action that was advisable but wasn't done. "It was wrong not to X" β†’ "You should have X-ed".
4"Regardless of how persuasively he argued, the board refused to change its decision."
MATTER
"No , the board refused to change its decision."
πŸ’¬ 3–6 words including MATTER
matter how persuasively he argued
Pattern: No matter how + adverb + S + V = regardless of how. Count: matter(1) how(2) persuasively(3) he(4) argued(5) = 5 words βœ“
5"She finds it very hard to adapt to working under pressure."
DIFFICULTY
"She under pressure."
πŸ’¬ 3–6 words including DIFFICULTY
has great difficulty adapting to working
Also accepted: "has difficulty adapting to working" (5 words)
Pattern: have (great) difficulty + -ing. Never "difficulty to adapt". Count: has(1) great(2) difficulty(3) adapting(4) to(5) working(6) = 6 words βœ“ (at the limit!)
6"The fraud was only discovered after investigators had carried out a routine audit."
UNTIL
"It was not that the fraud was discovered."
πŸ’¬ 3–6 words including UNTIL
until after a routine audit
Also accepted: "until investigators carried out a routine" (6 words β€” at the limit)
Pattern: It was not until [time] that + S + V. "Only after X" β†’ "It was not until X that". The word "that" is part of the fixed second sentence β€” do not include it in your gap.