Modal auxiliary verb တွေကိုသုံးတဲ့အခါ စာမေးပွဲမှာ မမှားရအောင် ဘယ်လိုရှောင်ရှားမလဲ။

Описание: Exam Traps With Modals — And How To Avoid Them
TRAP 1: mustn’t vs can’t (the BIGGEST trap)
Question:
The lights are off. He ___ be at home.
Wrong choice (very common):
❌ mustn’t
Correct answer:
✅ can’t
Why it’s a trap:Exams test whether you know:
mustn’t = prohibition
can’t = negative deduction
How to avoid it 🧠
Ask:
Is this a rule, or a logical guess?If it’s a guess → can’t

TRAP 2: must vs have to (thinking vs rule)
Question:
She looks exhausted. She ___ be tired.
❌ have to✅ must
Why:
must be = deduction
have to be = obligation
Avoid it
If the sentence gives evidence (looks, sounds, seems) → deduction → must

TRAP 3: Past obligation vs past deduction
Question:
I ___ finish the report yesterday because my boss asked me to.
❌ must have finished✅ had to finish
Why:
must have done = past guess
had to = real past duty
Avoid it
If the sentence includes:
because my boss asked me→ it’s obligation

TRAP 4: Missing have in past deduction
Question:
She didn’t answer the phone. She must ___ asleep.
❌ must be asleep✅ must have been asleep
Why:Past situation → must have + V3
Avoid it
Look for past clues:
didn’t, yesterday, last night, earlier

TRAP 5: Using can instead of might/could for deduction
Question:
He isn’t here. He ___ be late.
❌ can✅ might / could
Why:Affirmative can is rarely used for deduction.
Avoid it
If the answer choices include might / could, choose them over can.

TRAP 6: Confusing mustn’t and don’t have to
Question:
You ___ bring your laptop. The exam is on paper.
❌ mustn’t✅ don’t have to
Why:
mustn’t = forbidden
don’t have to = not necessary
Avoid it
Check meaning:
Not allowed? → mustn’t
Not necessary? → don’t have to

TRAP 7: Double modals ❌
Question:
She might ___ go home early.
❌ might can❌ might must✅ might go
Avoid it
English allows only ONE modal verb.

TRAP 8: Using must in questions (deduction)
Question:
___ he be at home?
❌ Must he be at home?✅ Could he be at home?
Why:Questions with must (deduction) are unnatural.
Avoid it
Use:
Could…?
Might…?

TRAP 9: Too strong certainty
Question (IELTS Speaking):
Why didn’t she reply?
❌ She must be angry.✅ She might be busy.
Why:Exams prefer natural, cautious language.
Avoid it
If no strong evidence → might / could

TRAP 10: Mixed systems in one sentence
Question:
It’s a hospital. You ___ be quiet.
❌ can’t✅ must be quiet
Why:Hospital rule = obligation.
Avoid it
Ask:
Is this a place rule?→ use obligation modals

MASTER EXAM CHECKLIST ✅
Before choosing a modal, ask:
Is this a guess or a rule?
Present or past?
Certainty or possibility?
Is it forbidden or impossible?

ONE-LINE EXAM MEMORY TRICK 🧠
Guess → must / might / can’tRule → must / have to / mustn’t

   • Modal auxiliary verb တွေကိုသုံးတဲ့အခါ စာမေ...  
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ဒီနေ့သင်ခန်းစာမှာကတော့ Modal auxiliary verb တွေကိုသုံးတဲ့အခါ စာမေးပွဲမှာ မမှားရအောင် ဘယ်လိုရှောင်ရှားမလဲ ဆိုတဲ့အကြောင်းပြောပြပေးမှာဖြစ်ပါတယ်။ တစ်ခုခုကိုမလုပ်ဖို့တာမြစ်ရာမှာသုံးမယ်ဆိုရင် mustn’t ကိုသုံး။ မဖြစ်နိုင်ဘူးလို့ယူဆပြောဆိုမယ်ဆိုရင်တော့ negative deduction ဖြစ်တဲ့ can’t ကိုသုံးရမှာဖြစ်ပါတယ်။ ဖြစ်နိုင်ခြေကိုမှန်းဆပြောမယ်ဆိုရင် might / could ကိုသုံးပါ။