German Phrase
Wann kannst du mein Zimmer sauber machen?
Meaning
The sentence asks the listener to specify the time at which they are able to clean the speaker’s room. It is a polite, informal request that combines a temporal question with a request for help.
When to use
Use this phrase when you need a roommate, family member, or friend to tidy up your private space and you want to know when they are available. It works best in informal settings where ‘du’ is appropriate.
✦Grammar Breakdown
WannkannstdumeinZimmersaubermachen?
Wann (question word)
‘Wann’ asks for a point in time. It always occupies the first position in a yes‑no or wh‑question, triggering verb‑second order.
kannst (modal verb können)
‘kannst’ is the 2nd‑person singular present of ‘können’. Modal verbs are conjugated, while the infinitive of the main verb stays at the end.
du (personal pronoun)
‘du’ is the informal singular ‘you’. In German the subject follows the finite verb in questions.
mein Zimmer (possessive + noun)
‘mein’ agrees with the gender, case and number of the noun. Here it is masculine nominative singular, so ‘mein’ is correct.
sauber machen (verb‑particle construction)
‘sauber’ is an adjective that combines with ‘machen’ to form a separable verb‑like phrase meaning ‘to clean’. The infinitive ‘machen’ stays at the end of the clause.
Verb‑final order
In main clauses with a modal verb, the infinitive (or past participle) of the main action goes to the very end of the sentence.
🗨In Conversation
Wann kannst du mein Zimmer sauber machen?
When can you clean my room?
Ich kann es heute Abend um acht machen.
I can do it this evening at eight.
✕Common Mistakes
Wann kann du mein Zimmer sauber machen?
The finite verb must be conjugated before the subject in a question.
Wann kannst du mein Zimmer machen sauber?
The adjective ‘sauber’ must stay before the infinitive ‘machen’, not after it.
Wann du kannst mein Zimmer sauber machen?
In a wh‑question the verb comes first, not after the subject.
↔Alternatives
Kannst du mein Zimmer reinigen?
Can you clean my room?
Wann würdest du mein Zimmer putzen?
When would you clean my room?
Sag mir bitte, wann du mein Zimmer sauber machst.
Please tell me when you will clean my room.
Cultural Tip
In German, the level of formality matters. ‘du’ is used with friends, family, or close colleagues. If you’re speaking to someone you don’t know well, switch to the formal ‘Sie’: ‘Wann können Sie mein Zimmer sauber machen?’ Also, Germans appreciate directness, so the question is perfectly acceptable as long as the tone stays friendly.