Was sind Modalverben?
Modalverben sind Hilfsverben, die vor der Grundform eines anderen Verbs stehen. Sie drücken Fähigkeit, Möglichkeit, Notwendigkeit, Erlaubnis und mehr aus.
Wichtige Grammatikregeln für Modalverben:
- Kein -s in der dritten Person Singular: She can swim. (nicht She cans swim.)
- Gefolgt vom reinen Infinitiv (ohne to): You must go. (nicht You must to go.)
- Verneinung: not nach dem Modalverb: cannot / can't, must not / mustn't
Modalverben und ihre Bedeutungen
| Modalverb | Hauptbedeutungen | Beispiel |
|---|---|---|
| can | Fähigkeit; Erlaubnis (informell) | I can swim. Can I leave? |
| could | vergangene Fähigkeit; höfliche Bitte; Möglichkeit | She could read at age 4. Could you help me? |
| must | starke Notwendigkeit; starke Schlussfolgerung | You must wear a helmet. He must be tired. |
| have to | äußere Notwendigkeit (Regel/Gesetz) | We have to wear a uniform at school. |
| should | Rat; milde Verpflichtung | You should eat more vegetables. |
| may | formelle Erlaubnis; Möglichkeit | You may leave. It may rain. |
| might | schwächere Möglichkeit | It might be cold tomorrow. |
| will | Zukunft; Bereitschaft; Gewissheit | I'll call you later. |
| would | Konditional; höfliche Bitten; vergangene Gewohnheit | Would you like tea? |
| need not | keine Notwendigkeit | You needn't hurry — we have time. |
must vs have to: Must kommt vom eigenen Gefühl des Sprechers; have to kommt von äußeren Regeln.
- I must tidy my room. (Ich fühle, dass es notwendig ist)
- I have to tidy my room. (Jemand hat es mir gesagt / es ist eine Regel)
Verneinungen
| Modalverb | Verneinung | Kurzform |
|---|---|---|
| can | cannot | can't |
| could | could not | couldn't |
| must | must not | mustn't |
| should | should not | shouldn't |
| will | will not | won't |
| would | would not | wouldn't |
Praxisbezug: Schilder und Hinweise
You must wear a seatbelt at all times. (Gesetz / Straßenschild) Passengers must not lean out of the window. (Zughinweis) You may not park here between 8 am and 6 pm. (Parkschild)
Praxisbezug: Stellenanzeige
"Applicants must have at least two years of experience. Candidates should be able to work independently. You will be working in a fast-paced environment. References may be requested."
Praxisbezug: Arztrat
"You should drink at least two litres of water a day. You shouldn't eat too much salt. You might feel tired for a few days, but you don't have to stay in bed."
Übungsaufgaben
Fülle mit dem richtigen Modalverb ein: 'You ___ smoke in the classroom — it is forbidden.'
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Fülle ein (Fähigkeit): 'She ___ speak three languages.'
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Fülle ein (Rat): 'You ___ go to bed earlier.'