Modal Verbs Grammar Practice (1–25)

Modal Verbs Grammar Practice

We use modal verbs and similar forms to talk about rules, advice, necessity, possibility, and permission.

Example: You must wear a seatbelt.
[Du musst einen Sicherheitsgurt tragen.]

For German speakers:
Modal verbs often express ideas like müssen, dürfen, sollen, or können. They help us show how strong a rule, recommendation, or possibility is.

must = strong necessity / rule
[must = müssen]
You must be on time.
[Du musst pünktlich sein.]

mustn't = prohibition
[mustn't = nicht dürfen]
You mustn't smoke here.
[Du darfst hier nicht rauchen.]

should = advice
[should = sollte]
You should drink more water.
[Du solltest mehr Wasser trinken.]

shouldn't = negative advice
[shouldn't = sollte nicht]
You shouldn't stay up so late.
[Du solltest nicht so lange aufbleiben.]

can = ability / permission / possibility
[can = können / dürfen]
I can swim.
[Ich kann schwimmen.]

can't = impossibility / prohibition
[can't = nicht können / nicht dürfen]
You can't park here.
[Du darfst hier nicht parken.]

need to / have to = necessity
[need to / have to = müssen]
We have to leave now.
[Wir müssen jetzt gehen.]

don't have to = not necessary
[don't have to = nicht müssen]
You don't have to come early.
[Du musst nicht früh kommen.]

might / may = possibility
[might / may = vielleicht / möglicherweise]
It might rain later.
[Es könnte später regnen.]

ought to = recommendation
[ought to = sollte]
You ought to call her.
[Du solltest sie anrufen.]

Typical words are:
must – mustn't – should – shouldn't – can – can't – need to – don't have to – have to – might – may – ought to

They show how necessary, possible, or advisable something is.
[Sie zeigen, wie notwendig, möglich oder ratsam etwas ist.]

Score: 0 / 25

1. Businesses in Germany ______ issue structured e-invoices from 2028.
a) might (vielleicht)
b) must (müssen)
[Unternehmen in Deutschland müssen ab 2028 strukturierte E-Rechnungen ausstellen.]

2. You ______ submit your tax return by the deadline.
a) must (müssen)
b) can (können)
[Du musst deine Steuererklärung bis zur Frist einreichen.]

3. Smaller businesses ______ switch to e-invoices before 2028, but it is recommended.
a) must (müssen)
b) don't have to (nicht müssen)
[Kleinere Unternehmen müssen vor 2028 nicht auf E-Rechnungen umstellen, aber es wird empfohlen.]

4. Invoices ______ include all mandatory fields to be valid.
a) must (müssen)
b) may (dürfen / vielleicht)
[Rechnungen müssen alle Pflichtangaben enthalten, um gültig zu sein.]

5. You ______ register for a new invoicing platform now. It is optional.
a) don't have to (nicht müssen)
b) have to (müssen)
[Du musst dich jetzt nicht für eine neue Rechnungsplattform registrieren. Es ist optional.]

6. Freelancers ______ send e-invoices if the client requires it.
a) might (vielleicht)
b) have to (müssen)
[Freiberufler müssen E-Rechnungen senden, wenn der Kunde es verlangt.]

7. From 2025, businesses ______ send paper invoices if the recipient agrees.
a) may (dürfen)
b) must (müssen)
[Ab 2025 dürfen Unternehmen Papierrechnungen senden, wenn der Empfänger zustimmt.]

8. Employees ______ use the company portal to upload receipts. It is good practice.
a) mustn't (nicht dürfen)
b) ought to (sollten)
[Mitarbeiter sollten das Firmenportal benutzen, um Belege hochzuladen. Es ist gute Praxis.]

9. You ______ store e-invoices for at least ten years.
a) have to (müssen)
b) may (dürfen / vielleicht)
[Du musst E-Rechnungen mindestens zehn Jahre aufbewahren.]

10. Companies ______ face penalties if they fail to comply.
a) might (könnten / vielleicht)
b) must (müssen)
[Unternehmen könnten Strafen bekommen, wenn sie die Vorschriften nicht einhalten.]

11. You ______ consult your accountant about the changes.
a) can't (nicht können / nicht dürfen)
b) should (sollte)
[Du solltest deinen Steuerberater wegen der Änderungen konsultieren.]

12. You ______ forget to back up your invoice data.
a) mustn't (nicht dürfen)
b) can (können)
[Du darfst nicht vergessen, deine Rechnungsdaten zu sichern.]

13. Employees ______ print out digital invoices unless it is necessary.
a) should (sollte)
b) shouldn't (sollte nicht)
[Mitarbeiter sollten digitale Rechnungen nicht ausdrucken, es sei denn, es ist notwendig.]

14. Business owners ______ apply for support if they need help updating their systems.
a) must (müssen)
b) can (können)
[Unternehmer können Unterstützung beantragen, wenn sie Hilfe bei der Aktualisierung ihrer Systeme brauchen.]

15. You ______ be a tax expert to understand every basic rule.
a) don't have to (nicht müssen)
b) must (müssen)
[Du musst kein Steuerexperte sein, um jede Grundregel zu verstehen.]

16. The finance department ______ archive invoices securely.
a) might (vielleicht)
b) should (sollte)
[Die Finanzabteilung sollte Rechnungen sicher archivieren.]

17. Some start-ups ______ invest in digital invoice systems early.
a) ought to (sollten)
b) can't (nicht können)
[Einige Start-ups sollten früh in digitale Rechnungssysteme investieren.]

18. You ______ access the old portal anymore. It has been shut down.
a) should (sollte)
b) can't (nicht können)
[Du kannst nicht mehr auf das alte Portal zugreifen. Es wurde abgeschaltet.]

19. Managers ______ attend a training session on the new software.
a) need to (müssen / brauchen)
b) don't have to (nicht müssen)
[Manager müssen an einer Schulung zur neuen Software teilnehmen.]

20. You ______ ignore emails from the tax authority.
a) should (sollte)
b) shouldn't (sollte nicht)
[Du solltest E-Mails vom Finanzamt nicht ignorieren.]

21. Businesses ______ create a digital workflow that meets the legal requirements.
a) must (müssen)
b) might (vielleicht)
[Unternehmen müssen einen digitalen Ablauf schaffen, der die gesetzlichen Anforderungen erfüllt.]

22. You ______ double-check that all invoice details are correct.
a) can't (nicht können)
b) should (sollte)
[Du solltest noch einmal prüfen, dass alle Rechnungsangaben korrekt sind.]

23. Some platforms ______ automatically generate compliant invoices.
a) can (können)
b) mustn't (nicht dürfen)
[Einige Plattformen können automatisch regelkonforme Rechnungen erstellen.]

24. Staff ______ receive extra training if they struggle with the new system.
a) mustn't (nicht dürfen)
b) may (dürfen / könnten)
[Mitarbeiter dürfen zusätzliche Schulung erhalten, wenn sie mit dem neuen System Schwierigkeiten haben.]

25. You ______ skip updates if your software prompts you.
a) shouldn't (sollte nicht)
b) may (dürfen / vielleicht)
[Du solltest Updates nicht überspringen, wenn deine Software dich dazu auffordert.]

Score: 0 / 25

Examples of Use

1. Must

Use: Something is necessary or very important.
Example:

  • You must wear a seatbelt in the car.
    (It’s the rule. You have to do it.)

2. Mustn’t

Use: Something is not allowed.
Example:

  • You mustn’t smoke here.
    (It’s forbidden. Don’t do it.)

3. Should

Use: A good idea, advice, or recommendation.
Example:

  • You should eat more vegetables.
    (It’s healthy. It’s a good idea.)

4. Shouldn’t

Use: A bad idea or something not recommended.
Example:

  • You shouldn’t stay up too late.
    (It’s not good for you.)

5. Can

Use: Something is possible or you are able to do it.
Example:

  • I can swim.
    (I know how to swim.)

6. Can’t

Use: Not possible or not allowed.
Example:

  • You can’t park here.
    (It’s not allowed.)

7. Need to

Use: Something is necessary.
Example:

  • I need to buy milk.
    (I don’t have milk. It’s important to get it.)

8. Don’t have to

Use: Not necessary. You can, but you don’t need to.
Example:

  • You don’t have to come early.
    (It’s OK if you come later.)

9. Have to

Use: Same as “must” – it’s necessary.
Example:

  • We have to do our homework.
    (It’s a rule or a requirement.)

10. Might

Use: Maybe (possibility).
Example:

  • It might rain today.
    (Maybe it will rain, maybe not.)

11. May

Use: Maybe or permission (more formal).
Examples:

  • It may snow tomorrow. (Maybe)

  • You may leave early today. (Permission)

12. Be allowed to

Use: Something is permitted.
Example:

  • Are we allowed to take photos here?
    (Is it OK? Is it permitted?)

13. Ought to

Use: Similar to “should” (a good idea or advice).
Example:

  • You ought to say thank you.
    (It’s polite. It’s the right thing.)

Modal Verbs Grammar Practice

🧠 Modal Verbs Grammar Practice

Choose the correct modal or form.

Modals: must, mustn't, should, shouldn't, can, can't, need to, don't have to, have to, might, may, be allowed to, ought to
1. Businesses in Germany ______ issue structured e-invoices from 2028.
a) can b) must c) might d) shall
2. You ______ submit your tax return by the end of the quarter. It's the law.
a) must b) may c) might d) can't
3. Smaller businesses ______ switch to e-invoices before 2028, but it's recommended.
a) mustn't b) don't have to c) can't d) must
4. Invoices ______ include all mandatory fields to be valid.
a) may b) ought to c) can d) mustn't
5. You ______ register for a new invoicing platform before the deadline. It's optional for now.
a) should b) must c) have to d) don't have to
6. Freelancers ______ send e-invoices if their client requires it.
a) might b) have to c) can't d) mustn't
7. From 2025, businesses ______ be allowed to send paper invoices if the recipient agrees.
a) can b) should c) must d) can't
8. Employees ______ use the company portal to upload receipts. It's good practice.
a) might b) mustn't c) ought to d) don't have to
9. You ______ store e-invoices for at least ten years under German tax law.
a) should b) have to c) mustn't d) may
10. Companies ______ face penalties if they fail to comply with the new regulations.
a) might b) must c) can't d) are allowed to
11. You ______ consult your accountant about the upcoming changes.
a) can b) should c) mustn't d) may
12. You ______ forget to back up your invoice data regularly.
a) might b) must c) mustn't d) can
13. Employees ______ print out digital invoices unless it's necessary.
a) should b) must c) shouldn't d) have to
14. Business owners ______ apply for government support if they need help updating their systems.
a) can b) must c) can't d) have to
15. You ______ be a tax expert to understand every part of the regulation.
a) must b) might c) don't have to d) can't
16. The finance department ______ archive invoices securely.
a) should b) may c) can't d) might
17. Some start-ups ______ invest in digital invoice systems early to avoid future stress.
a) can b) mustn't c) can't d) ought to
18. You ______ access the old portal anymore. It's been shut down.
a) must b) can't c) may d) should
19. Managers ______ attend a training session on the new software.
a) don't have to b) mustn't c) need to d) might
20. You ______ ignore emails from the tax authority. They might contain important updates.
a) shouldn't b) can c) must d) ought to
21. Businesses ______ create a digital workflow that matches the legal requirements.
a) must b) might c) may d) mustn't
22. You ______ double-check that all invoice details are correct.
a) don't have to b) should c) can't d) might
23. Some platforms ______ automatically generate compliant invoices.
a) might b) mustn't c) can't d) must
24. Staff ______ receive extra training if they struggle with the new system.
a) can b) mustn't c) may d) can't
25. You ______ skip updates if your invoicing software prompts you.
a) must b) may c) shouldn't d) ought to
26. The new law means you ______ be more organized with record keeping.
a) must b) might c) can't d) don't have to
27. You ______ share login details with colleagues. It's not secure.
a) must b) should c) mustn't d) might
28. All invoices ______ be machine-readable under the new rules.
a) ought to b) can c) may d) shouldn't
29. Business owners ______ feel overwhelmed at first. That's normal.
a) might b) can't c) mustn't d) ought to
30. If you're unsure, you ______ talk to a professional consultant.
a) mustn't b) may c) can't d) don't have to

d) might

Englisch Grammatik | Überblick