Home of English Grammar

Grammar Guide
  • Home
  • Exercises
  • Matches
  • Rules
  • Tools
    • Grammar Checker
    • Very Replacer
    • Word Counter
  • Top Social Media Posts
  • Vocabulary
  • Writing Guides
  • Contact

Advanced Epistemic vs. Deontic Modals Exercise

March 17, 2026 - C1pdf

Complete the 12 sentences below. Choose the best answer for each one. Some sentences have two correct answers. Choose both.

Progress 0 of 12 answered
1Given the security footage, the intruder ............... entered through the side door, not the front.
Wrong!
Use an epistemic modal for a strong logical conclusion from evidence.
2If you want access to the archive, you ............... sign the confidentiality agreement first, no exceptions.
Wrong!
This is a rule, so you need a deontic modal showing obligation.
3He ............... be in the lab right now because his car is still in the driveway.
Wrong!
The evidence makes his presence very likely, so use an epistemic modal of deduction.
4You ............... submit the ethics form today, but it would speed up the approval process.
Wrong!
This is advice rather than a strict requirement, so use a weaker deontic modal.
5The lights are off and the blinds are down, so they ............... be holding a meeting in there.
Wrong!
Use an epistemic modal to show that something is unlikely given the evidence.
6To comply with the new policy, staff ............... wear their ID badges at all times on site.
Wrong!
This is a formal obligation, so choose a deontic modal expressing requirement.
7I ............... have misread the email, but the deadline seems to be next Friday.
Wrong!
Use an epistemic modal to show uncertainty about your interpretation.
8You ............... park here after 6 p.m., according to the sign by the gate.
Wrong!
This is permission granted by a rule, so use a deontic modal of permission.
9If the server logs are accurate, the outage ............... been caused by a configuration change.
Wrong!
This is a tentative conclusion from evidence, so use an epistemic modal of possibility.
10You ............... disclose client data to anyone outside the team, even if they insist.
Wrong!
This is a prohibition, so choose a deontic modal meaning it is not allowed.
11With that accent, she ............... be from Dublin, though she never says where she grew up.
Select 2 answers.
Wrong!
This is a reasonable inference, so use an epistemic modal expressing possibility.
12To enter the clean room, visitors ............... wear a lab coat at all times.
Wrong!
This is a fixed requirement, so use a deontic modal expressing obligation.
Done.
Score: 0/12

Answers

  1. Given the security footage, the intruder must have entered through the side door, not the front.
  2. If you want access to the archive, you must sign the confidentiality agreement first, no exceptions.
  3. He must be in the lab right now because his car is still in the driveway.
  4. You should submit the ethics form today, but it would speed up the approval process.
  5. The lights are off and the blinds are down, so they can't be holding a meeting in there.
  6. To comply with the new policy, staff have to wear their ID badges at all times on site.
  7. I might have misread the email, but the deadline seems to be next Friday.
  8. You may park here after 6 p.m., according to the sign by the gate.
  9. If the server logs are accurate, the outage could have been caused by a configuration change.
  10. You mustn't disclose client data to anyone outside the team, even if they insist.
  11. With that accent, she could be from Dublin, though she never says where she grew up.
    With that accent, she might be from Dublin, though she never says where she grew up.
  12. To enter the clean room, visitors must wear a lab coat at all times.
  • Share
  • Post
  • Post
  • Email
NEW: Try Matches, our daily vocabulary challenge. Pick a topic and level and match words with definitions to boost your vocabulary.
2,485,429 
741,874 
Improve Your Grammar
  • Download 2026 Grammar Guide (PDF)
  • Free Weekly Exercises & Vocabulary
  • Join over 3 Million English Learners
We respect your privacy. Unsubscribe anytime.

Grammar Checker

GrammarCheck.net - Try online
Hint → Bookmark GrammarCheck for future use.

Latest Posts

  • Advanced Epistemic vs. Deontic Modals Exercise March 17, 2026
  • 100 Other Words for “Empathetic” March 16, 2026
  • 100 Best Synonyms for “Period” March 16, 2026
  • Tricky Epistemic Modality in Academic Prose Exercise March 16, 2026
  • Tricky Possessive Forms Exercise March 16, 2026
  • 100 Words to Use Instead of “Note” March 16, 2026
  • 100 Best Synonyms for “Bond” March 16, 2026

Copyright © 2026 · EnglishGrammar.org
Disclaimer · Privacy Policy · Sitemap · Terms

Improve Your Grammar
  • Download 2026 Grammar Guide (PDF)
  • Free Weekly Exercises & Vocabulary
  • Join over 3 Million English Learners
We respect your privacy. Unsubscribe anytime.