In English we use should / shouldn't /ought to / oughtn't to give advice. We use should / ought to to say something is a good thing to do and shouldn't / oughtn't to say something is a bad thing to do.
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Note : To ask for advice we can say: What should I do?
In English, "can" is a modal verb and only has a present, past and conditional form. It can also be used with a future meaning.
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Note : Can is not used to talk about specific possibilities.
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In English, could is used to talk about past ability/ permission/ possibility.
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"Be able to" can be used in the present, past, future, present perfect and as a gerund or infinitive.
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Note : be able to in the present and past is more formal than can or could.
In English we use might or may to say something in the future is possible, but not decided.
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To make questions with might we usually use Do you think...?
Example questions :
In English we can also use might in short answers.
Example short answers :
In English we use have to + infinitive to say something is necessary or obligatory. We normally use have to for a general obligation from an outside source, such as work or the law.
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In English we use don't have to + infinitive to say something is not necessary or obligatory. It means you can if you want to, but it's not necessary.
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To make questions we use do/does.
Example questions :
Form : ( Must + infinitive without to )
In English we use must + infinitive to talk about rules and obligations. We normally use must when the speaker imposes the obligation, such as a teacher to students, or even to yourself.
Form : ( Mustn't + infinitive without to )
In English we use mustn't + infinitive to say something is prohibited.
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Note : You can often use can't or be + not allowed to instead of mustn't.
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Note : Mustn't and don't have to have completely different meanings.
Mustn't Vs Don't Have To
Note : Have to is a normal verb and exists in all tenses whereas must is a modal verb and its only forms are must and mustn't.
You can also use have to and must for strong recommendations.
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In English we use must when we are sure something is true.
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In English we use may or might when we think something is possibly true.
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In English we use can't when we are sure something is impossible.
Examples sentences :
Note : In this context, the opposite of must is can't, NOT mustn't!
In the past, can't, could, may, might and must for probability change to can't have, could have, may have, might have and must have + past participle (Verb 3).
In the past, should and ought to change to should have and ought to have + past participle (Verb 3).
Note : the form of "must" for obligation and "can" are exceptions.
Must for obligation changes to had to + infinitive
Can changes to could or was able to
Modal example sentences | |
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You are going to ask me if I can take Bear out. | .انت ستسأل اذا ما كان سيمكننى أخذ بير للخارج |
Then we can talk, maybe! | !بعد ذلك يمكننا الحديث، ربما |
Umm, I guess it must be in zone-2... | امم، أعتقد أنها يجب ان تكون في المنطقة-2 |
Haven't decided yet, but you can call me when you finish. | .لم أقرر بعد, لكن يمكنك الإتصال بى عندما تنتهى |
Too bad, they must have understood you are a liar, then. | .هذا سيء للغاية، يجب أنهم قد فهموا أنكِ كاذبة، إذًا |
Could it be anywhere else? | هل يمكن ان تكون فى أى مكان أخر؟ |
I don't know, it's up to you, you can cook anything you like. | .لا أعلم، هذا يعود إليك، يمكنك طهى أى شىء تحبه |
Joseph, I'm taking the room, we can sign the contract! | !جوزيف، سأخذ الغرفة، يمكننا توقيع العقد |
Maybe we should start looking for houses in the suburbs first. | .ربما يجب علينا البدء في البحث عن المنازل في الضواحي أولًا |
I already couldn't sleep at all last night! | !انا بالفعل لم استطيع النوم طوال الليلة الماضية |
Yeah, maybe next time you can put that as a note on the ad. | .أجل، ربما في المرة القادمة يمكنك وضع هذا كملاحظة على الإعلان |
How can you be so sure? | كيف يمكنك أن تكون متأكدًا للغاية؟ |
Can you come for a second? You can talk to him later! | !هل يمكنك أن تأتي لثانية؟ يمكنك التحدث معه لاحقًا |
We can use the queue that goes faster. | .يمكننا أستخدام الصف الذى يسير بشكل أسرع |
Of course, you can have whatever you want. | .بالطبع يمكنك الحصول على ما تريد |
I thought I could look for more houses before my second appointment. | .إعتقدت أنه بإمكاني البحث عن المزيد من المنازل قبل الموعد الثاني |
I thought we could keep the spare room as a study for you. | .أعتقدت أنه يمكننا الإحتفاظ بغرفة فارغة لتكون مكتب لك |
I think they should be more understanding. | .أعتقد أنه يجب عليهم أن يكونوا متفهمين أكثر |
I said it was a mistake, I was terribly sorry, what else could I say? | قلت أن هذا كان بالخطأ، وأنني أسفة للغاية، ما الذي كان يمكنني قوله أيضاً؟ |
I can't decide if I should get calamari or shrimp. | .لا يمكننى ان اقرر اذا ما كان يجب ان احصل على كاليمارى ام جمبرى |