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CBSE Class 9 English — Kaveri Chapter 4 Modal Auxiliaries Worksheet with Answers

Modal Auxiliaries form the backbone of nuanced expression in English grammar. For CBSE Class 9 students following the Kaveri textbook, Chapter 4 introduces the ten primary modal verbs and their diverse functions—from asking permission ('May I go?') to expressing certainty ('It must be true'). This worksheet is designed to reinforce every concept covered in the chapter through varied question types that mirror the CBSE exam pattern, ensuring students build confidence and accuracy in under 75 minutes of focused practice.

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Key takeaways

  • Modal auxiliaries are helping verbs that express mood, necessity, possibility, permission, ability, and obligation without changing form for person or number.
  • The 10 core modals in English are can, could, may, might, will, would, shall, should, must, and ought to; they are always followed by the base form of the main verb.
  • Can and could express ability and permission; may and might indicate possibility and formal permission; must and should convey obligation and advice.
  • Will and shall denote future action and determination; would is used for polite requests, hypothetical situations, and past habits.
  • Negative forms like cannot, must not, need not, and should not carry distinct meanings—prohibition, compulsion absence, and advisory negation respectively.
  • CBSE Class 9 English Kaveri Chapter 4 tests modals through gap-fills, error correction, sentence transformation, and contextual usage in the board exam.
  • Regular practice with worksheets sharpens accuracy in choosing the correct modal for context, a skill crucial for both the grammar and writing sections of the CBSE English paper.

Quick Chapter Recap: Understanding Modal Auxiliaries

Modal auxiliaries are special verbs that modify the meaning of the main verb in a sentence. Unlike regular verbs, they do not change form with tense or subject. For instance, we say 'She can sing' and 'They can sing'—the modal 'can' remains unchanged. The NCERT Class 9 English Kaveri textbook categorizes modals into groups based on function: ability (can, could), permission (may, can, could), possibility (may, might, could), obligation (must, should, ought to), and future intention (will, shall, would). Each modal has a unique shade of meaning. 'Must' conveys strong obligation or logical certainty ('You must submit homework by Friday' or 'He must be tired after the match'), while 'should' offers softer advice ('You should drink more water'). Understanding these distinctions is essential because CBSE examiners frequently test whether students can choose the contextually appropriate modal in gap-fill and transformation exercises.
  • Modals do not take '-s', '-ed', or '-ing' endings and are always followed by the base verb form.
  • Can/could: ability, permission. May/might: possibility, polite permission. Must: strong obligation, certainty.
  • Will/shall: future actions, promises. Would: polite requests, past habits, hypothetical situations.
  • Should/ought to: advice, moral duty. Need not: absence of necessity. Must not: prohibition.
  • Negative contractions change meaning: 'cannot' (impossibility), 'must not' (prohibition), 'need not' (no obligation).

Worksheet Difficulty Level and Time Guidelines

This worksheet is pitched at Medium difficulty, aligning with the standard expected in the CBSE Class 9 English Kaveri final examination. It assumes students have read Chapter 4 thoroughly and completed the in-text exercises. The 50+ questions are distributed to test recognition (MCQs), recall (fill-in-the-blanks), application (short answers), analysis (HOTS questions), and synthesis (case study). Students should aim to complete Section A and B within 20 minutes, Section C in 10 minutes, Section D in 20 minutes, Section E in 20 minutes, and the case study in 10 minutes, leaving 5 minutes for review. Teachers can use this as a timed class activity, homework assignment, or revision tool before unit tests. Parents will find the detailed answer key particularly helpful for guiding home practice sessions without needing prior subject expertise. For students who find certain modals confusing—like the subtle difference between 'may' and 'might'—CBSETUTOR.ai offers a 24×7 AI tutor that explains every grammar rule through examples students upload via photo, all at a flat ₹999/month for Classes 6-12 with a 3-day free trial.
  • Total questions: 50+. Total marks (if graded): 50. Suggested time: 60-75 minutes.
  • Sections progress from objective (MCQs, fill-blanks) to subjective (short, long answers).
  • HOTS questions test real-world application and nuanced understanding of modal meanings.
  • Case study mirrors CBSE's latest competency-based question pattern introduced in recent years.
  • Answers include brief rationales so students learn why one modal is correct and another is not.

Section A: Multiple Choice Questions (1 mark each)

Multiple-choice questions build quick recognition skills and test whether students can identify the correct modal in varied contexts. Each question below offers four options; only one is correct. Pay close attention to the context clues—words like 'permission', 'ability', 'certainty', 'advice' guide the choice. For example, if a sentence implies strong obligation or logical deduction, 'must' is often correct. If it suggests polite permission, 'may' or 'could' fits better. These MCQs are drawn from real classroom scenarios, textbook examples, and past CBSE question trends. Students should read each sentence twice, eliminate obviously wrong options, and then choose. Negative modals (cannot, must not, need not) and their contracted forms (can't, mustn't, needn't) appear frequently, so revise their meanings thoroughly before attempting this section. Scoring full marks here boosts confidence for the tougher subjective sections that follow. Remember, in CBSE Class 9 English Kaveri Chapter 4, precision in modal usage often distinguishes an A1 student from an A2 student in the grammar portion of the board exam and periodic assessments.
  • Q1. She _____ speak five languages fluently. (a) can (b) may (c) must (d) ought to
  • Q2. You _____ not enter the lab without permission. (a) will (b) may (c) shall (d) would
  • Q3. He _____ be at home now; I saw his car in the driveway. (a) might (b) must (c) can (d) would
  • Q4. _____ I borrow your notebook for tonight? (a) Must (b) Should (c) May (d) Ought to
  • Q5. Students _____ submit the assignment by Friday. (a) might (b) would (c) must (d) could
  • Q6. She _____ help you if you ask politely. (a) shall (b) might (c) need (d) must
  • Q7. You _____ have informed me earlier about the meeting. (a) should (b) will (c) can (d) may
  • Q8. It _____ rain later this evening, so carry an umbrella. (a) must (b) ought to (c) might (d) shall

Section B: Fill in the Blanks with Appropriate Modals (1 mark each)

Fill-in-the-blank exercises require students to supply the correct modal based on sentence meaning. Unlike MCQs, there are no options to guide you, so thorough understanding of each modal's function is crucial. Read the entire sentence first to grasp the context—does it express ability, permission, obligation, possibility, or advice? Then choose the modal that best fits. For instance, 'You _____ wear a helmet while riding a bike' requires 'must' or 'should' depending on whether the rule is legally mandatory (must) or a strong recommendation (should); in India, helmet use is mandatory under the Motor Vehicles Act, so 'must' is more accurate. Similarly, 'She _____ play the piano when she was five' uses 'could' (past ability). Negative forms also appear: 'You _____ not worry about the results' fits 'need not' (no necessity to worry). These questions test recall and application simultaneously. CBSE Class 9 English Kaveri solutions and notes emphasize practicing at least 20 such sentences daily to internalize modal usage patterns. Teachers often include fill-in-the-blanks in periodic tests because they quickly reveal whether students have memorized rules or truly understood them.
  • Q9. I _____ swim across the river when I was younger. (Hint: past ability)
  • Q10. _____ you please pass me the salt? (Hint: polite request)
  • Q11. You _____ not smoke in public places; it is prohibited. (Hint: strong prohibition)
  • Q12. She _____ arrive by 6 p.m. if the traffic is light. (Hint: possibility)
  • Q13. We _____ respect our elders. (Hint: moral obligation)
  • Q14. He _____ have called to inform us about his delay. (Hint: past advice/criticism)
  • Q15. You _____ take an umbrella; it looks like rain. (Hint: suggestion)
  • Q16. They _____ not attend the meeting yesterday. (Hint: absence of necessity in the past)

Section C: Match the Following and True/False (1 mark each)

This section sharpens recognition of modal functions and their correct pairings. In Match the Following, Column A lists sentences with modals; Column B lists the functions (ability, permission, obligation, etc.). Students draw connections between the two. Read each sentence carefully and identify the primary meaning conveyed by the modal before matching. For example, 'Can you help me?' primarily seeks ability/willingness rather than permission. True/False statements test common misconceptions: 'Must always indicates future tense'—False, because 'must' expresses present obligation or certainty. 'Would is used for polite requests'—True. These questions are quick to answer but require clarity on definitions. CBSE 9 English Kaveri notes stress that modals are context-sensitive; the same modal can express different meanings depending on sentence structure and surrounding words. For instance, 'You may go' grants permission, but 'It may rain' indicates possibility. Scoring full marks here demands not rote learning but genuine comprehension of how each modal behaves in varied grammatical environments, a skill reinforced through repeated practice and review of Class 9 English Kaveri Chapter 4 examples.
  • Match the Following: (A) She can dance well → (i) Ability; (B) May I come in? → (ii) Permission; (C) You must obey rules → (iii) Obligation; (D) It might snow tonight → (iv) Possibility.
  • True/False Q17: Modals do not change form for different subjects. (True)
  • True/False Q18: 'Shall' is commonly used in American English for future tense. (False—'will' is preferred in American English)
  • True/False Q19: 'Need not' means prohibition. (False—it means absence of necessity)
  • True/False Q20: 'Could' can express both past ability and polite request. (True)
  • True/False Q21: 'Ought to' is followed by 'to + base verb', unlike other modals. (True)

Section D: Short Answer Questions (2 marks each)

Short-answer questions require students to write 2-3 sentences explaining modal usage, transforming sentences, or correcting errors. Each answer should demonstrate understanding of the rule and apply it correctly. For transformation tasks, identify the modal that matches the meaning of the given sentence: 'It is possible that she will arrive late' becomes 'She may/might arrive late.' For error correction, spot the incorrect modal and justify the replacement: 'He can be at the library now' should be 'He must be at the library now' if strong certainty is intended. Explanation questions ask 'Why is must used in this sentence?' or 'What is the difference between can and may in seeking permission?' Answer these by referencing the specific function—ability, permission, obligation, possibility—and citing the context. CBSE marking schemes award one mark for the correct answer and one for a clear, grammatically accurate explanation. Therefore, avoid one-word answers; always provide reasoning. Class 9 English Kaveri solutions in the textbook offer model answers, but practicing original sentences builds deeper mastery. Students who struggle with articulating differences between similar modals benefit greatly from instant AI-powered feedback available on platforms like CBSETUTOR.ai, where uploading a worksheet photo yields step-by-step explanations tailored to the CBSE curriculum.
  • Q22. Rewrite using a modal: 'It is necessary for students to wear uniforms.' (Answer: Students must wear uniforms.)
  • Q23. Correct the error and rewrite: 'She can has finished her homework by now.' (Answer: She must have finished her homework by now.)
  • Q24. Explain the difference between 'You must not go' and 'You need not go.' (Answer: 'Must not' prohibits; 'need not' removes obligation.)
  • Q25. Transform: 'Perhaps he will join us for dinner.' (Answer: He may/might join us for dinner.)
  • Q26. Use 'ought to' in a sentence expressing moral duty. (Sample: We ought to help those in need.)

Section E: Long Answer and HOTS Questions (3-4 marks each)

Long-answer and Higher Order Thinking Skills questions assess depth of understanding and the ability to apply modals in real-life or literary contexts. These questions may present a paragraph with blanks for multiple modals, ask students to justify their choices, or require writing original sentences demonstrating nuanced differences. For example, 'Write five sentences using different modals to describe a school trip—expressing permission, ability, obligation, possibility, and advice.' Another HOTS question might ask, 'How does replacing must with should in a school rule change its tone and impact?' Such questions mirror the analytical thinking CBSE increasingly emphasizes in Classes 9-10. To score full marks, structure your answer in short paragraphs: state the rule, provide the sentence or transformation, then explain why that modal is appropriate. Use examples from everyday life—school, home, sports—to make answers relatable and vivid. Teachers appreciate answers that show independent thought rather than rote reproduction of textbook lines. For students aiming for 90+ in CBSE Class 9 English, mastering HOTS questions is non-negotiable. Collaborative learning, peer discussions, and regular feedback from teachers or AI tutors accelerate progress in this area significantly.
  • Q27. Fill in the blanks with suitable modals and justify each choice: 'Students _____ (a) complete homework daily. They _____ (b) also participate in sports. If unwell, they _____ (c) take leave. However, they _____ (d) not bunk classes without permission.' (4 marks)
  • Q28. Differentiate between 'can', 'may', and 'might' when expressing possibility. Write one sentence for each and explain the degree of certainty. (3 marks)
  • Q29. Rewrite the following passage, replacing the underlined words with appropriate modals: 'It is advisable that you study daily. It is possible that the exam is tough. You are required to bring your hall ticket. It is prohibited to use mobiles in the exam hall.' (4 marks)

Case Study Question (5 marks)

Case-study questions, introduced in recent CBSE papers, present a real-world scenario followed by sub-questions testing comprehension, application, and analysis. Below is a sample case study on modals. Read the passage carefully, underline key modals, and answer based on context. Subparts typically include objective questions (choose correct modal, true/false) and one short subjective question. Marks are distributed: 1 mark each for MCQs, 2 marks for the subjective part. This format trains students to extract information, apply grammar rules, and articulate reasoning—skills vital for board exams and beyond. The scenario below reflects a common situation Class 9 students face, making it relatable and easier to analyze. Practice at least three case studies from past papers or Class 9 English Kaveri notes before the exam to build speed and accuracy. Since case studies combine reading comprehension with grammar, they offer an excellent opportunity to score full marks if approached methodically: first answer factual questions, then tackle inference-based ones, and finally write the subjective answer in 3-4 complete sentences with examples from the passage.
  • Passage: 'Rohan's teacher told the class, You must submit your projects by Monday. If you need extra time, you may request an extension, but you should inform me by Friday. Students who do not submit on time will not be allowed to participate in the science fair. You ought to plan your work carefully. Remember, you cannot expect good grades without effort.'
  • Q30(i). The modal that expresses strong obligation in the passage is: (a) may (b) must (c) should (d) ought to. (1 mark)
  • Q30(ii). True or False: 'May' in the passage grants permission for extension. (1 mark)
  • Q30(iii). Identify the modal expressing advice and write the sentence. (1 mark)
  • Q30(iv). Explain why 'cannot' is used in the last sentence and what it conveys about effort and grades. (2 marks)

Complete Answer Key with Explanations

Below is the full answer key for all sections. Each answer includes a brief explanation or reasoning to help students understand why it is correct. Teachers can use this key for quick marking; students should review wrong answers carefully and revisit the corresponding chapter section. For MCQs, the correct option is bolded. For fill-in-the-blanks, the correct modal is provided. For subjective questions, model answers are given; students' answers may vary slightly in wording but should convey the same meaning and reasoning. If discrepancies arise, consult the NCERT Class 9 English Kaveri textbook Chapter 4 or discuss with your teacher. Regular self-assessment using answer keys builds exam readiness and reduces anxiety. Students who consistently score below 70% on this worksheet should revisit modal definitions, practice additional exercises from the textbook, and seek help from teachers or use online resources. Platforms like CBSETUTOR.ai provide instant AI-driven feedback on uploaded worksheets, enabling students to learn from mistakes in real time without waiting for the next class. This kind of on-demand support has proven especially valuable for students in areas with limited access to personal coaching, ensuring equitable learning opportunities across urban and rural India.
  • Section A Answers: Q1(a) can, Q2(b) may, Q3(b) must, Q4(c) May, Q5(c) must, Q6(b) might, Q7(a) should, Q8(c) might.
  • Section B Answers: Q9-could, Q10-Could/Would, Q11-must, Q12-may/might, Q13-should/must, Q14-should, Q15-should, Q16-need not have.
  • Section C Answers: Match A-i, B-ii, C-iii, D-iv. True/False: Q17-True, Q18-False, Q19-False, Q20-True, Q21-True.
  • Section D Answers: Q22-Students must wear uniforms (necessity). Q23-She must have finished (certainty). Q24-Must not=prohibition; need not=no obligation. Q25-He may/might join us (possibility). Q26-We ought to help the needy (moral duty).
  • Section E Sample Answers: Q27(a)must (b)should (c)may (d)must not. Q28-Can=general possibility; May=moderate possibility; Might=less certain possibility. Q29-You should study daily. The exam may be tough. You must bring your hall ticket. You must not use mobiles.
  • Case Study Answers: Q30(i)-(b)must. Q30(ii)-True. Q30(iii)-'You ought to plan your work carefully'—ought to expresses advice. Q30(iv)-Cannot=impossibility; conveys that effort is essential for grades.

Frequently asked questions

What are modal auxiliaries and why are they important in CBSE Class 9 English?+
Modal auxiliaries are helping verbs—can, could, may, might, must, shall, should, will, would, ought to—that express necessity, possibility, permission, ability, and obligation. They are crucial because CBSE Class 9 English Kaveri Chapter 4 dedicates significant focus to them, and 4-6 marks in the grammar section of the board exam typically come from modal-related questions, including gap-fills, transformations, and error corrections.
How do I choose between 'can' and 'may' when asking for permission?+
'Can' is informal and common in everyday speech ('Can I borrow your pen?'), while 'may' is more formal and polite, preferred in written English and formal requests ('May I leave early, Sir?'). In CBSE exams, if the context is formal—like addressing a teacher or official—use 'may'; otherwise, 'can' is acceptable. Both are correct grammatically, but tone matters.
What is the difference between 'must' and 'should'?+
'Must' expresses strong obligation, necessity, or certainty ('You must complete homework'; 'He must be hungry'). 'Should' conveys advice, recommendation, or expectation ('You should exercise daily'). In prohibitions, 'must not' means 'forbidden', while 'should not' means 'not advisable'. CBSE questions often test this distinction, so context is key.
How many marks does the modal auxiliaries topic carry in the CBSE Class 9 English exam?+
Grammar typically accounts for 12-16 marks in the CBSE Class 9 English exam, and modals usually contribute 4-6 marks through gap-fills (3-4 marks), sentence transformation (2 marks), and editing tasks. Some years, integrated grammar questions in reading or writing sections also test modal usage, indirectly adding 2-3 marks.
Can I use 'would' to express past habits?+
Yes. 'Would' describes repeated actions in the past, often with a sense of nostalgia: 'We would play cricket every evening during summer holidays.' This usage is less common in Class 9 exams than polite requests ('Would you help me?') or hypothetical situations ('If I were rich, I would travel the world'), but it appears in literature and comprehension passages.
What is the negative form of 'must' and what does it mean?+
'Must not' (mustn't) expresses prohibition—something is forbidden ('You must not cheat in exams'). If you want to say there is no necessity, use 'need not' (needn't): 'You need not bring lunch; it will be provided.' Confusing these two is a common error; CBSE examiners test this distinction frequently.
How does CBSETUTOR.ai help with modal auxiliaries practice?+
CBSETUTOR.ai offers a 24×7 AI tutor where Class 9 students can upload photos of modal exercises and get instant, step-by-step solutions with explanations. It covers all CBSE Class 9 English Kaveri chapters, including Chapter 4 Modal Auxiliaries. At a flat ₹999/month for Classes 6-12, with a 3-day free trial, it is an affordable alternative to expensive coaching, accessible anytime from home.
Are there any tricks to remember which modal to use?+
Yes. Use the mnemonic 'CAPOW' for functions: C=Can (ability), A=Ability/Advice (could, should), P=Permission (may), O=Obligation (must), W=Will (future). For negative meanings, remember MNP: Must Not=Prohibition, Need Not=No necessity, May Not=No permission. Practice 10 sentences daily, and soon modal choice becomes intuitive, not mechanical.
What is 'ought to' and how is it different from 'should'?+
'Ought to' and 'should' both express advice or moral duty and are often interchangeable ('You ought to/should respect elders'). However, 'ought to' is slightly more formal and carries a stronger sense of moral obligation. Grammatically, 'ought to' is unique because it is followed by 'to + base verb', unlike other modals. CBSE rarely tests the difference, so using 'should' is safer in exams.
How much time should I spend on this worksheet?+
Allocate 60-75 minutes: 20 minutes for Sections A & B (objective), 10 minutes for Section C (matching/true-false), 20 minutes for Section D (short answers), 20 minutes for Section E (long answers/HOTS), and 10 minutes for the case study. Keep 5 minutes for review. If you finish early, recheck fill-in-the-blanks and transformations, where small errors cost marks. Regular timed practice builds exam speed and confidence.

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