Modal Verbs (Leaving Cert German): Revision Notes
Modal Verbs
Overview
Modal verbs are a special group of helping verbs that express ability, permission, obligation, likelihood, or desire. In German, modal verbs work differently from regular verbs because they almost always appear with a main verb to create complete meaning. When you use a modal verb, you're adding extra information about how, why, or under what conditions an action takes place.
German has six main modal verbs that you'll use frequently in everyday conversation and writing: dürfen, können, mögen, müssen, sollen, wollen. These verbs help you express everything from what you can do, to what you must do, to what you'd like to do.
Rules & formation
Modal verbs follow specific patterns that make them easier to use once you understand the basic rules:
The key rule: You conjugate the modal verb according to the subject, but the main verb stays in its infinitive form (the basic dictionary form ending in -en). This is different from English, where we might say "I can swimming" - in German, this structure actually works!
Sentence structure: The conjugated modal verb takes the normal verb position (second position in a statement), while the main verb in infinitive form goes to the very end of the sentence.
With separable verbs: When using separable verbs with modals, the separable verb stays together as one unit and goes to the end - it doesn't split up like it normally would.
Table of key forms
| Infinitiv | ich | du | er/sie/es | wir | ihr | sie | English |
|---|---|---|---|---|---|---|---|
| dürfen | darf | darfst | darf | dürfen | dürft | dürfen | may / be allowed to |
| können | kann | kannst | kann | können | könnt | können | can / be able to |
| mögen | mag | magst | mag | mögen | mögt | mögen | like |
| müssen | muss | musst | muss | müssen | müsst | müssen | must / have to |
| sollen | soll | sollst | soll | sollen | sollt | sollen | should / be supposed to |
| wollen | will | willst | will | wollen | wollt | wollen | want |
Special case - möchten (would like):
| Infinitiv | ich | du | er/sie/es | wir | ihr | sie | English |
|---|---|---|---|---|---|---|---|
| möchten | möchte | möchtest | möchte | möchten | möchtet | möchten | would like |
Individual modal verb meanings and usage
dürfen (may / be allowed to)
This modal verb expresses permission or prohibition. You use it when asking for permission or stating what's allowed or not allowed.
Usage Examples for dürfen:
Asking permission: Darf ich das Fenster öffnen? (May I open the window?)
Stating prohibition: Sie darf das Land nicht verlassen. (She is not allowed to leave the country.)
können (can / be able to)
This expresses ability or possibility - what someone is capable of doing or what's possible in a situation.
Usage Examples for können:
Expressing ability: Sie können sehr gut schwimmen. (They can swim very well.)
Expressing impossibility: Ich kann morgen nicht ins Cafe kommen. (I can't come to the café tomorrow.)
mögen (like)
This modal verb expresses liking or preference for people, things, or activities.
Examples:
- Ich mag sie. (I like her.)
- Sie mag Raimond nicht. (She doesn't like Raimond.)
müssen (must / have to)
This expresses necessity or obligation - something that must be done.
Examples:
- Du musst Deutsch lernen! (You must learn German!)
- Muss ich das machen? (Do I have to do this?)
sollen (should / be supposed to)
This modal verb gives advice, makes recommendations, or expresses what someone is supposed to do.
Examples:
- Du solltest mehr lernen. (You should learn more.)
- Wir sollten das nicht machen. (We shouldn't do this.)
wollen (want)
This expresses strong desire or intention to do something.
Examples:
- Ich will jetzt gehen! (I want to go now!)
- Sie will ihn nicht mehr. (She doesn't want him anymore.)
Example sentences with explanations
Understanding how modal verbs work in context helps you use them correctly in your own German sentences.
Worked Examples: Modal Verb Structure
Basic modal verb structure: Ich kann Deutsch sprechen. (I can speak German.) → Here, "kann" is conjugated for "ich," and "sprechen" stays in infinitive form at the end.
With separable verbs: Ich kann ihn abholen. (I can pick him up.) → "Abholen" normally separates, but with the modal verb, it stays together at the end.
Word order in questions: Kannst du mir helfen? (Can you help me?) → The modal verb moves to first position in yes/no questions.
Common mistakes & tips
Learning from common errors will help you use modal verbs correctly and avoid typical pitfalls that German learners face.
Mistake 1: Confusing mögen and möchten
- mögen = to like someone or something
- möchten = would like to do something (more polite)
- Use möchten when making requests: Ich möchte etwas zu trinken. (I would like something to drink.)
Mistake 2: Negating müssen incorrectly
- nicht müssen = don't need to / not necessary
- nicht dürfen = must not / not allowed
- Du musst nicht kommen. (You don't need to come.)
- Du darfst nicht kommen. (You're not allowed to come.)
Mistake 3: Using wollen when möchten is more appropriate
- wollen can sound demanding or rude in German
- Use möchten for polite requests: Möchten Sie sich setzen? (Would you like to sit down?)
Mistake 4: Conjugating both verbs Remember: only conjugate the modal verb, leave the main verb in infinitive form
- Wrong: Ich kann spreche Deutsch.
- Right: Ich kann Deutsch sprechen.
Mistake 5: Wrong word order Modal verb goes in second position, main verb at the very end
- Correct: Cathy kann ein wenig Deutsch sprechen. (Cathy can speak a little German.)
Key Points to Remember:
- Modal verbs always work with a main verb in infinitive form - you conjugate the modal, not the main verb
- The six German modal verbs are: dürfen, können, mögen, müssen, sollen, wollen
- Word order: subject + modal verb + ... + main verb (infinitive) at the end
- Use möchten instead of wollen for polite requests
- "nicht müssen" means "don't need to," while "nicht dürfen" means "not allowed to"