Modal Auxiliaries: Can, May, Must, and Should
Strengthen your writing by practicing helper verbs like can, may, must, and should. These quick quizzes provide instant feedback to help you master expressing possibility and obligation.
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Same skill, different difficulty. Start where it feels right — you can switch any time.
Grade level quizzes
10 questions · Multiple choice
10 questions · Multiple choice
10 questions · Multiple choice
10 questions · Multiple choice
10 questions · Multiple choice
10 questions · Multiple choice
10 questions · Multiple choice
10 questions · Multiple choice
10 questions · Multiple choice
10 questions · Multiple choice
Modal auxiliaries are special helping verbs that change the meaning of the main verb in a sentence. They tell us how necessary, possible, or allowed an action is. For instance, saying 'You should clean your room' is a helpful suggestion, but 'You must clean your room' is a strict rule! Matching the right helper to your sentence makes your writing clear and precise.
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The same skill with easier or harder sentences.
Printable modal auxiliaries worksheets
Every Modal auxiliaries quiz on this page also downloads as a free printable worksheet with a PDF answer key — great for homework, review, or the classroom. Sign in and use the print button on any quiz, or download a whole Grade 6 grammar workbook at once with Pro.
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Grade 6 reading passages to enjoy alongside grammar practice — each one comes with comprehension questions and a quiz.
Frequently asked questions
What are modal auxiliaries?
Why is reviewing modal auxiliaries important in 6th grade?
How do these quizzes help my students improve?
Do kids need an account to practice grammar on PicoBuddy?
Refining Tone and Strength in Sixth-Grade Writing
In sixth grade, students review modal auxiliaries to bring nuance and precision to their essays and arguments. First introduced in fourth grade, helper verbs like can, may, must, and should allow students to express varying degrees of certainty, obligation, and permission. Knowing when to use a strong modal (like must) versus a softer recommendation (like should) is essential for persuasive writing.
How to Support Learning at Home or in Class
Encourage students to analyze the modals they read in everyday instructions or articles. You can boost their skills with these quick exercises:
- The Obligation Scale: Have students rank modal verbs from weakest (might) to strongest (must).
- Context Swaps: Take a sentence like 'We can go to the library' and change the helper to should or must to discuss how the meaning changes.
- Regular Practice: Use interactive grammar quizzes to reinforce these subtle distinctions and build sentence-building confidence.
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