







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.
Example sentences :
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.
Example sentences :
Note : Can is not used to talk about specific possibilities.
Example sentences :
In English, could is used to talk about past ability/ permission/ possibility.
Example sentences :
"Be able to" can be used in the present, past, future, present perfect and as a gerund or infinitive.
Example sentences :
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.
Example sentences :
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.
Examples sentences :
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.
Example sentences :
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.
Example sentences :
Note : You can often use can't or be + not allowed to instead of mustn't.
Example sentences :
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.
Example sentences :
In English we use must when we are sure something is true.
Example sentences :
In English we use may or might when we think something is possibly true.
Examples sentences :
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 | |
|---|---|
| So you can enjoy your meal till I come. | So kannst du dein Essen genießen, bis ich komme. |
| Of course, we can leave whenever you want. | Natürlich, wir können gehen wann immer du möchtest. |
| Sorry to interrupt your story, but I really have to go now! | Entschuldige, dass ich deine Geschichte unterbreche, aber ich muss wirklich gehen! |
| I see, can you get a month long holiday from work? | Ich verstehe. Kannst du dir einen Monat Urlaub nehmen? |
| But I wonder what it says, can you show it to me, too? | Aber ich frage mich was da steht. Kannst du es mir auch zeigen? |
| Of course, but I can only peel the potatoes with a peeler. | Natürlich, aber ich kann die Kartoffeln nur mit einem Schäler schälen. |
| They might have some more in stock. | Vielleicht haben sie mehr auf Lager. |
| I may need to leave him with Mike sometimes. | Ich muss ihn wahrscheinlich manchmal bei Mike lassen. |
| I can't find my bra, can you see it? | Ich kann meinen BH nicht finden. Kannst du ihn sehen? |
| Yes darling, we just live in the house next door, you can come anytime! | Ja, wir leben im Haus daneben. Sie können jederzeit vorbeikommen! |
| But I have to be in Brighton in the afternoon. | Aber ich muss am Nachmittag in Brighton sein. |
| No, you have to bring your own or buy new ones, dear. | Nein meine Liebe. Die müssen Sie selbst mitbringen oder neu kaufen. |
| Yes, normally, that's what they should do. | Ja, das hätten sie normalerweise tun sollen. |
| Why can French restaurants serve bugs, but Chinese ones can't? | Warum können französische Restaurants Käfer anbieten, aber chinesische nicht? |
| He is a bit of a d*ck, as you might have already realised. | Er ist ein ziemlicher A*sch, wie ihr möglicherweise schon festgestellt habt. |
| Can I get you some drinks to start with? | Kann ich Ihnen für den Anfang etwas zu trinken bringen? |
| Okay, but can we talk about when to meet first? | Okay, aber können wir zuerst darüber reden wann wir uns treffen? |
| I'm not homophobic, but still you should've told me that before. | Ich bin nicht schwulenfeindlich, aber du hättest es mir trotzdem vorher sagen sollen. |
| I don't know, she could do anything! | Ich weiß nicht, sie könnte alles machen! |
| Great! Can I have your number, then? | Großartig! Kann ich dann deine Nummer haben? |