| OET Grammar Reflex Dr. Wasim School of Medical Education |
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🧠 Prepositions & Cohesion Reflex for OET Writing
In / On / At | Time | Place | Signal Markers | Cohesive Paragraphs | Referral Letter Flow
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🎯 MASTER RULE
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Prepositions and signal markers make the OET letter clear, logical and easy to follow. Use in for longer time/place contexts, on for days, dates and examination phrases, and at for exact time or activity places. Use cohesive markers only when they truly connect clinical ideas. |
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⏱️ PREPOSITIONS OF TIME — IN / ON / AT / NO PREPOSITION
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| IN |
ON |
AT |
NO PREPOSITION |
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Longer periods of time
in November in spring in 2006 in the past in the future in the morning in the afternoon in her childhood in his twenties
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Days, dates and clinical review phrases
on Monday on 20 November on Christmas Day on his birthday on review on examination on investigation on presentation on two occasions
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Exact time and fixed expressions
at 6 o’clock at night at lunchtime at that time at the moment at the age of 45 at birth
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Use no preposition
yesterday today tomorrow last week this week next week
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📍 PREPOSITIONS OF PLACE — IN / ON / AT
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| IN |
ON |
AT |
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Inside something / country / body cavity
in Australia in hospital in surgery in the stomach
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Surface area
on the skin on the ground floor
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Place of activity
at home at work at the wound site at the clinic
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✅ CORRECT vs ❌ INCORRECT — PREPOSITIONS
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| ❌ Incorrect |
✅ Correct |
Reflex Reason |
| His father died of cancer during the age of 50. |
His father died of cancer at the age of 50. |
Use at the age of. |
| In examination today, the patient was anxious and distressed. |
On examination today, the patient was anxious and distressed. |
Use on examination. |
| Initial examination on today revealed inflamed gums. |
Initial examination today revealed inflamed gums. |
Today needs no preposition. |
| On December 2006, the patient had his wisdom teeth removed. |
In December 2006, the patient had his wisdom teeth removed. |
Month + year = in. |
| The patient’s family arrived at Australia in last year. |
The patient’s family arrived in Australia last year. |
Country = in; last year = no preposition. |
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🔗 COHESION MASTER RULE
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Cohesion means linking ideas logically. In OET Writing, signal markers should show time, contrast, addition, cause, result, emphasis, concern or request. Do not use them mechanically; use them only when the relationship between the sentences is clear.
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🧾 SIGNAL MARKERS A–D
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| Signal marker |
Function |
OET-style use |
| as well as |
Addition |
She suffers from oedema as well as bladder incontinence. |
| as a result of |
Cause |
The child was admitted as a result of a complication following mumps. |
| as a result |
Result |
As a result, treatment under general anaesthetic is recommended. |
| along with |
Addition of finding |
Cervical excitation was noted along with tenderness in the right fornix. |
| apart from this |
Exception / contrast |
Apart from this, no abnormalities were found. |
| at that time |
Past time reference |
At that time, her physical examination was normal. |
| besides that |
Additional information |
Besides that, he has type 2 diabetes. |
| because of this |
Reason-result link |
Because of this, he has been told to cease smoking. |
| based on |
Evidence-based conclusion |
Based on that, lymphoma is suggested. |
| consequently |
Result |
Consequently, extensive treatment was undertaken. |
| during |
Period of care |
During hospitalisation, his vital signs were monitored. |
| duration |
Symptom length |
She presented with lower abdominal pain of one-day duration. |
| despite |
Contrast |
Despite regular dental cleaning, his gum condition is only fair. |
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🧾 SIGNAL MARKERS F–O
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| Signal marker |
Function |
OET-style use |
| for this reason |
Reason-result |
For this reason, he was advised to exercise and follow a healthy diet. |
| hence |
Result |
The lesions are deep and hence the tooth has to be extracted. |
| however |
Contrast |
However, her gums are inflamed. |
| in terms of |
Topic shift |
In terms of her medical history, she has mild hypertension. |
| in order to |
Purpose |
Medication was prescribed in order to reduce anxiety. |
| in addition |
Addition |
In addition, he is epileptic and uses medication to control the attacks. |
| in the meantime |
Temporary plan |
In the meantime, urological assessment is required. |
| in case of |
Safety advice |
In case of irritation, redness or swelling, discontinue treatment. |
| may I remind you that |
Polite reminder |
May I remind you that both teeth will require root canal treatment. |
| my main concern is that |
Main concern |
My main concern is that the patient is reluctant to breastfeed. |
| it should be noted |
Important note |
It should be noted that they may have limited English. |
| over |
Time period / change |
Over the past week, she has remained free from severe pain. |
| on review today |
Current review finding |
On review today, the patient has reduced smoking. |
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🧾 SIGNAL MARKERS P–W
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| Signal marker |
Function |
OET-style use |
| please note |
Important warning |
Please note, he has an allergic reaction to nuts. |
| regarding |
Topic shift |
Regarding his medical history, Jordan suffers from eczema and asthma. |
| regrettably |
Unfavourable update |
Regrettably, she complains of mild constipation and weakness. |
| recently |
Recent medication/update |
Recently, she has been prescribed Karvea and Oroxine. |
| since then |
Progress after past event |
Since then, he has been doing regular exercise and has lost weight. |
| therefore |
Result / plan |
Therefore, she was advised to reduce weight and exercise. |
| the reason for |
Purpose of referral |
The reason for the referral is to consider possible prostate biopsy. |
| up until now |
Timeline to present |
Up until now, Mr Hutton has led a very unhealthy life. |
| unfortunately |
Negative prognosis/news |
Unfortunately, she is not expected to survive more than three months. |
| with regard to |
Letter opening / topic |
I am writing with regard to this patient, who is under our care. |
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📄 EXAMPLE COHESIVE PARAGRAPH MODELS
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Doctors:
Initially, I saw Mr Jones last month when he came for a check-up. At this time, his blood pressure showed mild elevation and his weight was above the normal limit. However, cardiovascular examination and urinalysis were normal. Therefore, I advised him to lose weight, stop smoking and attend a review visit within one month.
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Dentists:
Initial examination on 20/02/2008 revealed that 54 had a temporary filling with a cavity extending through the furcation. Based on the bitewing radiological findings, extraction of 54 and 65 was advised, along with construction of a space maintainer. Moreover, filling of carious 55 and fissure sealant for all 6’s were advised.
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Nurses:
When admitted to this hospital, Mr Jagger complained of haematemesis, anorexia and dizziness associated with weight loss and anaemia. He was also suffering from severe epigastric pain after meals. Therefore, his stool was examined and an endoscopy was performed.
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⚡ PREPOSITION & COHESION MEMORY BOOSTER LINES
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| Month / year / long period … Use in. |
| Day / date / examination / review … Use on. |
| Exact time / age / activity place … Use at. |
| Today / yesterday / last week … Use no preposition. |
| Contrast … Use however / despite / apart from this. |
| Cause and result … Use because of this / as a result / therefore / consequently. |
| Addition … Use in addition / as well as / along with. |
| Purpose of referral … Use the reason for the referral / my main concern is that. |
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🧠 FINAL MEMORY LOCK
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In → longer periods and inside places: in December, in hospital, in Australia.
On → days, dates and clinical phrases: on Monday, on examination, on review.
At → exact time, age and activity place: at 6 pm, at the age of 45, at the clinic.
No preposition → today, yesterday, tomorrow, last week, this week, next week.
Cohesion → use signal markers to show time, cause, result, contrast, addition and concern.
OET warning → do not overuse connectors; every marker must serve the clinical logic.
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✅ HOW TO STUDY?
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Read phrase → identify time/place/logic → choose the correct preposition or connector → practise in Mock Tests
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