مدونة التربية و التعليم في الجزائر – دروس، فروض، نتائج امتحانات مدونة التربية والتعليم في الجزائر | تحضير الدروس، فروض واختبارات، نتائج البكالوريا وBEM، مسابقات التوظيف، والتوجيه المدرسي للطلاب وأولياء الأمور.
Modal Verbs: Can, Could, Must, Should
Modal verbs are auxiliary verbs that express ability, permission, obligation, or advice.
1. Can / Could (Ability)
- Can: present ability. “I can swim.” (I know how to swim)
- Could: past ability. “I could run fast when I was young.”
- Negative: cannot (can’t), could not (couldn’t).
2. Can / Could (Permission)
- “Can I open the window?” (informal)
- “Could I ask a question?” (more polite)
3. Must (Obligation)
- “You must wear a uniform at school.” (necessary)
- “You mustn’t run in the corridor.” (prohibition)
4. Should (Advice)
- “You should study for the exam.” (recommendation)
- “You shouldn’t eat too much sugar.” (advice against)
| Modal | Use | Example |
|---|---|---|
| can | ability / permission | I can speak English. |
| could | past ability / polite request | Could you help me? |
| must | obligation | You must do your homework. |
| mustn’t | prohibition | You mustn’t cheat. |
| should | advice | You should drink water. |
Exercises
1) Complete: I … swim very well. (ability) You … respect your parents. (obligation)
2) Choose: You (should/must) eat healthy food. I (can/must) play the guitar.
