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Common Grammar Mistakes Quiz

Common Grammar Mistakes Quiz - Free Errors Grammar Test - FreudlyTake a free common grammar mistakes quiz to practice and sharpen your common grammar mistakes skills. Quick, no sign-up needed. Start now!en
See how strong your grammar skills are in just 10 minutes. Answer 16 real world items to spot common errors and get a quick score showing where to improve, no sign up needed.
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Questions: 1610 minutes
08:30
July 22, 2026
July 22, 2026
Material has been updated
July 22, 2026
Material has been published
3,208 views
308 completions
269 likes
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How the Scales are Structured

example score
7/16
Common Grammar Mistakes Knowledge (CGMK)
Measures how well you recognize and correct common everyday English grammar errors across core rules and usage patterns.
Foundations to review
Developing accuracy
Strong command
06: Foundations to review | 712: Developing accuracy | 1316: Strong command
A score of 7 indicates developing accuracy, meaning you catch many common mistakes but may benefit from targeted editing practice to improve consistency.
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DATA-BASED USER COHORTS

Who Usually Takes This Test?

Students and exam takers
41%OF USERS
They use it to spot common errors that can lower grades or test scores in essays, reports, and timed writing.
Job seekers and professionals
34%OF USERS
They want to polish emails, resumes, and workplace documents by catching mistakes in punctuation, agreement, and word choice.
Everyday English learners
25%OF USERS
They take it to quickly check their grammar basics and learn which topics need more practice for clearer communication.
BASED ON AGGREGATED, ANONYMIZED DATA FROM TENS OF THOUSANDS OF FREUDLY USERS.
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See How You Compare

Once you complete the test, your results are compared with real-world data from people in your country.
Below is a preview of how scores are typically distributed across each scale.
Common Grammar Mistakes Knowledge (CGMK)
Common Grammar Mistakes Knowledge (CGMK)
Average
9.5
Normal range
6.812.2
min.
0
max.
16
This curve shows how scores are typically distributed.
Once you complete the test, your result will appear on the scale so you can see how you compare.
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SAMPLE QUESTIONS

Example Questions From the Test

    • Walking through the park, the flowers looked especially bright.
    • Walking through the park, Maya noticed the bright flowers.
    • While driving to work, the rain began to fall.
    • After reading the report, several errors were obvious.
    • If I had known about the event, I would have attended.
    • If I had knew about the event, I would attend.
    • If I would have known about the event, I attended.
    • If I knew about the event, I would have attended.
    • Each of the students has submitted the assignment.
    • Each of the students have submitted the assignment.
    • Each of the student have submitted the assignment.
    • Each of the students were submitting the assignment.
WHAT THE TEST MEASURES
About This Assessment

Common Grammar Mistakes Quiz - Symptoms and Signs

Take this free Common Grammar Mistakes Quiz to check how well you recognize and correct everyday English errors. Work through 16 practical questions on sentence structure, agreement, punctuation, pronouns, modifiers, verb forms, possessives, and commonly confused words. Your score provides a concise summary of your current grammar knowledge and areas that may benefit from more practice. It is quick to complete, and no sign-up is required.

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