Modal Verbs of Obligation looks specifically at modal verbs of obligation. At this level, the goal is to control meaning, tone, and sentence variety with more confidence.
Pendant la lecture de Modaux d obligation, garde cette question en tête : Is the sentence about a rule, a duty, advice, or lack of necessity?. Elle t aide à relier la règle au sens.
As you read, keep one question in mind: Is the sentence about a rule, a duty, advice, or lack of necessity? This question will help you connect the rule to meaning instead of memorizing the form alone.
You will see obligation and advice in work, school, travel, and daily life, then practice the topic through corrections, short tasks, and a final review.
Cet exemple appartient à Modèle principal. La partie importante est She can swim. ; observe sa position et demande pourquoi elle fonctionne dans Modaux d obligation.
Cet exemple appartient Ă Utilisation naturelle. La partie importante est It might rain. ; observe sa position et demande pourquoi elle fonctionne dans Modaux d obligation.
Cet exemple appartient Ă Anglais quotidien. La partie importante est You should rest. ; observe sa position et demande pourquoi elle fonctionne dans Modaux d obligation.
Cet exemple appartient Ă Forme de question. La partie importante est We have to leave now. ; observe sa position et demande pourquoi elle fonctionne dans Modaux d obligation.
Cet exemple appartient Ă Style formel. La partie importante est He must be tired. ; observe sa position et demande pourquoi elle fonctionne dans Modaux d obligation.
Dans Modaux d obligation, la forme She can to swim. ne fonctionne pas ici. La forme correcte est She can swim.. Après la plupart des modaux, utilise la base verbale sans to.
Erreur
She can to swim.
Correction
She can swim.
Pourquoi cela change
Après la plupart des modaux, utilise la base verbale sans to.
Use the base verb after most modal verbs.
Erreur 2
Dans Modaux d obligation, la forme He musts leave. ne fonctionne pas ici. La forme correcte est He must leave.. N ajoute pas s aux verbes modaux, mĂŞme avec he, she ou it.
Erreur
He musts leave.
Correction
He must leave.
Pourquoi cela change
N ajoute pas s aux verbes modaux, mĂŞme avec he, she ou it.
Do not add s to modal verbs.
Erreur 3
Dans Modaux d obligation, la forme You should to rest. ne fonctionne pas ici. La forme correcte est You should rest.. La plupart des modaux sont suivis directement par la base verbale.
Erreur
You should to rest.
Correction
You should rest.
Pourquoi cela change
La plupart des modaux sont suivis directement par la base verbale.
Most modals are followed directly by the base verb.
Write five rules and five pieces of advice using different modal verbs.
Tâche 2
La tâche Underline the words that prove the sentence uses modal verbs of obligation. te fait marquer les mots qui prouvent l utilisation de Modaux d obligation.
But de la tâche
Underline the words that prove the sentence uses modal verbs of obligation.
Rewrite two examples so they test this question: Is the sentence about a rule, a duty, advice, or lack of necessity?
Tâche 4
La tâche Find one real sentence online or in a book that shows obligation and advice in work, school, travel, and daily life. t amène à trouver une vraie phrase et observer où apparaît Modaux d obligation.
But de la tâche
Find one real sentence online or in a book that shows obligation and advice in work, school, travel, and daily life.
The key question is: Is the sentence about a rule, a duty, advice, or lack of necessity?
The main rule to remember is: Use modal verb plus the base verb without to, except for semi-modals such as ought toand have to.
You will study obligation and advice in work, school, travel, and daily life.
By the end, you should be able to separate strong obligation, weak advice, and no obligation.
Overview
Modal verbs add meaning to another verb. They express ability, possibility, permission, advice, obligation, deduction, willingness, and politeness.
Modal Verbs of Obligation looks specifically at modal verbs of obligation. At this level, the goal is to control meaning, tone, and sentence variety with more confidence.
As you read, keep one question in mind: Is the sentence about a rule, a duty, advice, or lack of necessity? This question will help you connect the rule to meaning instead of memorizing the form alone.
You will see obligation and advice in work, school, travel, and daily life, then practice the topic through corrections, short tasks, and a final review.
Use modal verb plus the base verb without to, except for semi-modals such as ought to and have to.
Rules And Explanation
This section breaks modal verbs of obligation into practical rules. Read each rule, study the examples, and notice how the form supports the meaning.
Ability And Possibility
Use can, could, may, and might to talk about ability, possibility, and uncertainty.
She can swim.
It might rain.
Could you help me?
Advice And Obligation
Use should, must, have to, and ought to for advice, rules, and necessity.
You should rest.
Drivers must stop.
We have to leave now.
Deduction
Use must, might, could, and can't to guess from evidence.
He must be tired.
She might be at home.
That can't be true.
Learning tip: Keep checking this question as you read: Is the sentence about a rule, a duty, advice, or lack of necessity?
Detailed Examples
The examples below focus on modal verbs of obligation. Read the sentence, then read the note so you can see why the grammar choice works.
Use
Example
Why It Works
Core pattern
She can swim.
This example connects to modal verbs of obligation and shows obligation and advice in work, school, travel, and daily life.
Natural use
It might rain.
This example connects to modal verbs of obligation and shows obligation and advice in work, school, travel, and daily life.
Meaning check
Could you help me?
This example connects to modal verbs of obligation and shows obligation and advice in work, school, travel, and daily life.
Daily English
You should rest.
This example connects to modal verbs of obligation and shows obligation and advice in work, school, travel, and daily life.
Careful writing
Drivers must stop.
This example connects to modal verbs of obligation and shows obligation and advice in work, school, travel, and daily life.
Question form
We have to leave now.
This example connects to modal verbs of obligation and shows obligation and advice in work, school, travel, and daily life.
Formal style
He must be tired.
This example connects to modal verbs of obligation and shows obligation and advice in work, school, travel, and daily life.
Review sentence
She might be at home.
This example connects to modal verbs of obligation and shows obligation and advice in work, school, travel, and daily life.
How This Grammar Works In Context
Modal verbs of obligation becomes more useful when it appears inside connected writing, not only in isolated examples. Try using the topic in a short message, a description, a comparison, or an explanation.
A strong example should answer the article question: Is the sentence about a rule, a duty, advice, or lack of necessity? If your sentence answers that question, the grammar is doing real work.
Common Mistakes
These mistakes show what can go wrong with modal verbs of obligation. Compare the wrong sentence, the correction, and the reason before you write your own examples.
Common Mistake
Correction
Why
She can to swim.
She can swim.
Use the base verb after most modal verbs.
He musts leave.
He must leave.
Do not add s to modal verbs.
You should to rest.
You should rest.
Most modals are followed directly by the base verb.
How To Correct Your Own Sentence
Find the main grammar structure in the sentence.
Check the words before and after the structure.
Ask whether the meaning matches the grammar form.
Read the sentence aloud and listen for missing words.
Compare your sentence with one correct model sentence from this article.
Practice Exercises
Use these exercises after reading the article. They are designed around modal verbs of obligation, so each task should help you use the topic in a specific way.
Write five rules and five pieces of advice using different modal verbs.
Underline the words that prove the sentence uses modal verbs of obligation.
Rewrite two examples so they test this question: Is the sentence about a rule, a duty, advice, or lack of necessity?
Find one real sentence online or in a book that shows obligation and advice in work, school, travel, and daily life.
Write a short note explaining how modal verbs of obligation changes the meaning of the sentence.
Writing Challenge
Write a short paragraph of five to seven sentences that includes modal verbs of obligation. After writing, highlight the grammar pattern and explain how it answers this question: Is the sentence about a rule, a duty, advice, or lack of necessity?
Short Quiz
Answer these questions to check whether you can recognize and use modal verbs of obligation without relying only on memory.
What is the key question for Modal Verbs of Obligation?
Choose the best example sentence from the lesson.
What should you remember about modal verbs of obligation?
What is one common mistake learners should avoid?
Write your own sentence that shows modal verbs of obligation.
Answer Key
Is the sentence about a rule, a duty, advice, or lack of necessity?
She can swim.
Use modal verb plus the base verb without to, except for semi-modals such as ought to and have to.
She can to swim.
Answers will vary, but the sentence should show modal verbs of obligation clearly and follow the rule.
Related Grammar Articles
These related articles connect naturally with modal verbs of obligation and help you build the next layer of grammar control.