B2 · فوق المتوسط فصل 18

قواعد الالتزام والحرية: احتراف أفعال الكيفية (Modal Verbs)

4 القواعد الإجمالية
20 أمثلة
1 دقيقة

Chapter in 30 Seconds

Master the nuances of modal verbs to express rules, requirements, and permissions with total confidence.

  • Distinguish between internal and external obligations.
  • Navigate the subtle differences between prohibition and absence of necessity.
  • Express formal and informal permissions using standard and alternative phrases.
Command the rules of English with precision.

ما ستتعلمه

أهلاً بك يا بطل في هذه المرحلة المتقدمة! هل شعرت يوماً بالحيرة عند الاختيار بين 'Must' و 'Have to'؟ في هذا الفصل، سننتقل بلغتك الإنجليزية من مجرد إيصال المعنى إلى مستوى الدقة والاحترافية الذي يميز المتحدثين الأصليين. ستتعلم كيف تفرق بذكاء بين الإلزام الشخصي النابع منك، والقوانين المفروضة عليك من الخارج، وهو أمر حيوي جداً في بيئات العمل والمواقف الرسمية. سنغوص معاً في الفروق الدقيقة؛ فمثلاً، ستدرك لماذا 'Mustn't' تعني المنع القاطع، بينما 'Don't have to' تمنحك كامل الحرية في الاختيار. تخيل أنك بدأت وظيفة جديدة في لندن؛ هنا ستحتاج لمعرفة ما إذا كنت 'Supposed to' (يُفترض بك) اتباع بروتوكول معين، أو إذا كنت 'Allowed to' (مسموح لك) التصرف بحرية. كما سنعالج المواقف المحرجة في الماضي، مثل قولك 'Needn't have' لتعبر عن ندمك على فعل شيء لم يكن ضرورياً أصلاً. بنهاية هذا الفصل، ستتقن التعبير عن الضرورة، المنع، والإذن بكل ثقة وسلاسة. ستصبح قادراً على شرح القواعد، وطلب الإذن برقيّ، ووصف المسؤوليات بدقة متناهية، مما يجعلك تبدو أكثر لباقة واحترافية في أي حوار إنجليزي تخوضه.

Learning Objectives

By the end of this chapter, you will be able to:

  1. 1
    By the end you will be able to: Differentiate between internal and external obligation using must and have to.
  2. 2
    By the end you will be able to: Distinguish between prohibition and lack of necessity in professional contexts.

نصائح وحيل (4)

💡

The 'Must' Trap

Avoid using 'must' in questions. It sounds like you are demanding an answer. Use 'Do I have to' instead.
frontend.learn_grammar.from_rule: Obligation and Necessity: Must, Have To, Need To
💡

Context is King

Always ask yourself: Is this a rule or a choice?
frontend.learn_grammar.from_rule: Prohibition vs. No Necessity: Mustn't vs. Don't Have To
💡

Use 'May' for respect

When in doubt in a professional setting, use 'may'.
frontend.learn_grammar.from_rule: Permission: Can, May, Be Allowed To, Be Supposed To
💡

The 'Needn't Have' Trap

Always use 'needn't have' for past mistakes. It shows you know the action was completed.
frontend.learn_grammar.from_rule: Needn't, Don't Need To, Didn't Need To, Needn't Have: No Obligation

المفردات الرئيسية (5)

Mandatory Required by rule or law Optional Not required Forbidden Not allowed Authority Power to enforce rules Discretion Freedom to decide

Real-World Preview

briefcase

Office Protocol

Review Summary

  • Must/Have to + base verb
  • Mustn't + base verb
  • Be allowed to/May
  • Needn't/Don't need to

أخطاء شائعة

Must is not used in the negative for obligation; use 'don't have to' instead.

Wrong: I don't must go.
صحيح: I don't have to go.

Mustn't means it is forbidden, not that it is optional.

Wrong: You mustn't pay if you don't want to.
صحيح: You don't have to pay if you don't want to.

Modals do not take the third-person 's' and are followed by the bare infinitive.

Wrong: He musts to work.
صحيح: He must work.

Next Steps

You have done an amazing job today! Keep practicing these nuances, and you will sound increasingly natural.

Listen to a news report and note the modal verbs used to describe laws.

تدريب سريع (10)

Choose the best fit.

___ I ask a question?

✓ Correct! ✗ Not quite. Correct answer: May
May is polite.

frontend.learn_grammar.from_rule: Permission: Can, May, Be Allowed To, Be Supposed To

Fix the error.

Find and fix the mistake:

I can to go.

✓ Correct! ✗ Not quite. Correct answer: I can go
No 'to' after 'can'.

frontend.learn_grammar.from_rule: Permission: Can, May, Be Allowed To, Be Supposed To

Fill in the blank.

You ___ finish the work today; tomorrow is fine.

✓ Correct! ✗ Not quite. Correct answer: don't have to
It is optional.

frontend.learn_grammar.from_rule: Prohibition vs. No Necessity: Mustn't vs. Don't Have To

Fill in the blank.

I ___ to be at the meeting at 9.

✓ Correct! ✗ Not quite. Correct answer: am supposed
Supposed to means expected.

frontend.learn_grammar.from_rule: Permission: Can, May, Be Allowed To, Be Supposed To

Fill in the blank.

You ___ pay for this, it's free.

✓ Correct! ✗ Not quite. Correct answer: don't need to
It is optional.

frontend.learn_grammar.from_rule: Needn't, Don't Need To, Didn't Need To, Needn't Have: No Obligation

Find the error.

Find and fix the mistake:

You mustn't go if you are tired.

✓ Correct! ✗ Not quite. Correct answer: mustn't
Should be 'don't have to'.

frontend.learn_grammar.from_rule: Prohibition vs. No Necessity: Mustn't vs. Don't Have To

Fill in the blank.

___ I borrow your pen?

✓ Correct! ✗ Not quite. Correct answer: Can
Can is for informal permission.

frontend.learn_grammar.from_rule: Permission: Can, May, Be Allowed To, Be Supposed To

Choose the correct sentence.

Which sentence is correct?

✓ Correct! ✗ Not quite. Correct answer: I must go.
Must is a modal verb.

frontend.learn_grammar.from_rule: Obligation and Necessity: Must, Have To, Need To

Fill in the blank with mustn't or don't have to.

You ___ smoke in the hospital.

✓ Correct! ✗ Not quite. Correct answer: mustn't
It is a rule.

frontend.learn_grammar.from_rule: Prohibition vs. No Necessity: Mustn't vs. Don't Have To

Fix the error.

Find and fix the mistake:

You don't must smoke here.

✓ Correct! ✗ Not quite. Correct answer: You mustn't smoke here.
Prohibition requires mustn't.

frontend.learn_grammar.from_rule: Obligation and Necessity: Must, Have To, Need To

Score: /10

أسئلة شائعة (6)

No, 'must' has no past form. Use 'had to' instead.
Yes, it is often used in formal writing or by authority figures.
No, 'mustn't' is not used in questions. Use 'do I have to' instead.
Yes, it is often used in official rules and signs.
It's better to use 'may' or 'could'. 'Can' might sound too casual.
Modals like 'can' are followed by the base verb without 'to'.