Meaning
Asking for an explanation of the current situation.
Cultural Background
Slovaks appreciate when foreigners use 'Čo sa deje?' because it shows an understanding of the reflexive 'sa', which is a hallmark of the language. It sounds much more natural than just saying 'Čo je?'. In the East, you are more likely to hear 'Čo še dzeje?' or 'Čo še robi?'. The 'sa' becomes 'še' in the local dialect. It’s a great way to spot where someone is from. Younger Slovaks might use 'Čo riešiš?' (What are you solving/dealing with?) as a more aggressive or slangy version of 'What's going on with you?'. 'Čo sa deje?' remains the polite, standard version. In Czech, the equivalent is 'Co se děje?'. They are almost identical, making this a very useful phrase if you travel between the two countries. The only difference is the 'e' vs 'ě' pronunciation.
The 'Sa' Rule
Always keep 'sa' in the second position. If you say 'Čo sa dnes deje?', 'sa' stays right after 'Čo'.
Not a Greeting
Don't use it as a casual 'Hi' unless you actually want to know what's happening. Use 'Ako sa máš?' for 'How are you?'.
Meaning
Asking for an explanation of the current situation.
The 'Sa' Rule
Always keep 'sa' in the second position. If you say 'Čo sa dnes deje?', 'sa' stays right after 'Čo'.
Not a Greeting
Don't use it as a casual 'Hi' unless you actually want to know what's happening. Use 'Ako sa máš?' for 'How are you?'.
Add 'vlastne'
Adding 'vlastne' (actually/really) makes you sound like a native: 'Čo sa to tu vlastne deje?'
Be Ready for an Answer
Slovaks take this question literally. If you ask, they will tell you!
Test Yourself
Fill in the missing reflexive pronoun.
Čo ___ deje?
The verb 'diať sa' always requires the reflexive pronoun 'sa'.
Which sentence is the most natural way to ask 'What's happening?' in a neutral context?
Choose the best option:
'Čo sa deje?' is the standard neutral present tense form.
Complete the dialogue.
Jano: 'Počuješ ten hluk vonku?' Miro: 'Áno, ________?'
Miro is asking about the ongoing noise, so the present tense 'Čo sa deje' is correct.
Match the phrase to the situation.
You see your friend crying.
'Čo sa deje?' is used to express concern when someone is visibly upset.
🎉 Score: /4
Visual Learning Aids
Present vs Past
Practice Bank
4 exercisesČo ___ deje?
The verb 'diať sa' always requires the reflexive pronoun 'sa'.
Choose the best option:
'Čo sa deje?' is the standard neutral present tense form.
Jano: 'Počuješ ten hluk vonku?' Miro: 'Áno, ________?'
Miro is asking about the ongoing noise, so the present tense 'Čo sa deje' is correct.
You see your friend crying.
'Čo sa deje?' is used to express concern when someone is visibly upset.
🎉 Score: /4
Frequently Asked Questions
14 questionsYes, it is neutral and polite enough for most daily interactions.
Yes, if you see something unusual happening in the office, it is perfectly fine.
'Deje' is more standard/neutral, while 'robí' is more informal and common in certain regions.
You can say 'Nič zvláštne' (Nothing special) or describe the situation: 'Pracujeme na projekte.'
Yes. Without 'sa', the verb 'diať' is not used in modern Slovak.
No, for the future use 'Čo sa bude diať?'.
'Čo je?' is a shorter, more aggressive or very informal version. Use it only with close friends.
In some contexts, yes, but it's more literal than the English 'What's up?'.
It's better to ask 'Ako sa cítiš?' (How do you feel?) or 'Čo ti je?' (What's wrong with you?).
Yes, it is very common in dialogue in Slovak literature.
People will still understand you, but it will sound very 'broken'.
Yes, 'Co se děje?' is the Czech equivalent.
It's better to say 'Čo je nové?' or 'Čo sa deje v poslednej dobe?'.
Usually no. In emails, use more specific questions like 'V akom stave je náš projekt?'.
Related Phrases
Čo sa stalo?
similarWhat happened?
O čo ide?
specialized formWhat is it about?
Čo sa robí?
synonymWhat's being done?
Ako to ide?
similarHow is it going?
Čo je nové?
similarWhat's new?