Greek has two basic verbal negators, and the choice follows mood. Δεν negates indicative statements—facts, reports, and predictions—while μη(ν) negates subjunctive clauses and prohibitions. English speakers must learn this as a paired system: the particle slot and the negator are chosen together, not independently.
The master contrast
An indicative presents something as a statement about reality or a prediction. Its negative frame is δεν + verb, optionally with future θα:
Δεν ξέρω την απάντηση.
dhen kséro tin apándisi
I don't know the answer.
Δεν ήρθε στη συνάντηση χθες.
dhen írthe sti sinándisi chthes
He didn't come to the meeting yesterday.
Δεν θα πάω στη δουλειά αύριο.
dhen tha páo sti dhuliá ávrio
I won't go to work tomorrow.
A subjunctive presents an action as wanted, possible, proposed, feared, or otherwise not asserted as a fact. Its negative frame is να / ας + μη(ν) + verb. A direct prohibition uses μη(ν) + verb, with no overt να.
Θέλω να μην αργήσεις πάλι.
thélo na min aryísis páli
I want you not to be late again.
Ας μη φύγουμε ακόμα.
as mi fíghume akóma
Let's not leave yet.
Μην το κάνεις, είναι επικίνδυνο.
min to kánis, íne epikíndhino
Don't do it; it's dangerous.
Δεν negates statements without “do”
English inserts do in I do not know and did in I did not go. Greek needs no auxiliary. Put δεν before the already conjugated verb, and leave its tense, person, and aspect intact: ξέρω → δεν ξέρω, ήρθε → δεν ήρθε, θα πάω → δεν θα πάω.
This difference is structural. Δεν is a particle, not a verb carrying tense. The Greek main verb continues to show who acted and when, whereas English transfers tense to do.
Δεν κατάλαβα τι μου είπες.
dhen katálava ti mu ípes
I didn't understand what you told me.
Δεν δουλεύουμε τα Σαββατοκύριακα.
dhen dhulévume ta Savatokíriaka
We don't work on weekends.
All indicative tenses follow this rule. Negating with δεν develops tense and aspect in detail.
The particles come before clitics
Weak object pronouns such as το, μου, σου, μας sit immediately before an ordinary finite verb. The negator goes before the whole clitic group:
δεν + (θα) + clitic(s) + verb
να / ας + μη(ν) + clitic(s) + verb
Δεν το θυμάμαι καθόλου.
dhen to thimáme kathólu
I don't remember it at all.
Δεν θα σου το πω ακόμα.
dhen tha su to po akóma
I won't tell it to you yet.
Προσπάθησε να μην τους μιλήσεις απότομα.
prospáthise na min tus milísis apótoma
Try not to speak to them abruptly.
In a prohibition, the same preverbal order holds: Μην το κάνεις, Μη μου μιλάς έτσι. This differs from a positive imperative such as Κάν' το, where the clitic follows the command.
Μη or μην is a sound-based alternation
The two spellings are not different registers. Keep -ν before a vowel and before the stops and stop-like clusters κ, π, τ, ξ, ψ, γκ, μπ, ντ, τσ, τζ: μην αργήσεις, μην το πεις, μην ξεχάσεις. Drop it before other consonants: μη φύγεις, μη βιάζεσαι, μη μου πεις. Δεν normally keeps its final ν.
Μην ανησυχείς, θα σε πάρω μόλις φτάσω.
min anisichís, tha se páro mólis ftáso
Don't worry; I'll call you as soon as I arrive.
Μη βιάζεσαι, έχουμε χρόνο.
mi viázese, échume chróno
Don't rush; we have time.
The form after μη(ν) is subjunctive, not an imperative form. The full command system appears on negative imperatives.
Warning clauses can omit να
After verbs of care, fear, or warning, μη(ν) can introduce a feared possibility directly: Πρόσεχε μην πέσεις “Be careful not to fall.” This is still the non-indicative μη(ν) side of the system; it is not an exception that allows μην in a plain factual statement.
Πρόσεχε μην πέσεις στις σκάλες.
próseche min pésis stis skáles
Be careful not to fall on the stairs.
Negative concord: two negatives, one meaning
In a negative statement, Greek requires δεν alongside words such as τίποτα “nothing / anything,” κανείς “nobody / anybody,” ποτέ “never / ever,” and πουθενά “nowhere / anywhere.” The two negative elements reinforce one semantic negation; they do not cancel each other as prescriptive English double negatives do. In questions and other non-assertive contexts, the same forms can instead mean “anything / anybody / ever / anywhere” without δεν; the obligatory pairing described here is specifically their negative use.
Δεν είπα τίποτα σε κανέναν.
dhen ípa típota se kanénan
I didn't say anything to anyone.
Κανείς δεν ήρθε στην ώρα του.
kanís dhen írthe stin óra tu
Nobody arrived on time.
Δεν έχω πάει ποτέ εκεί.
dhen écho pái poté ekí
I've never been there.
Όχι answers and contrasts
Όχι is the independent word “no / not.” It answers a yes–no question or rejects one constituent. It does not replace δεν before an indicative verb.
Όχι, δεν θέλω καφέ· θα πάρω τσάι.
óchi, dhen thélo kafé· tha páro tsái
No, I don't want coffee; I'll have tea.
Θέλω τσάι, όχι καφέ.
thélo tsái, óchi kafé
I want tea, not coffee.
A reliable decision procedure
First identify what kind of clause you are negating. A statement or prediction takes the indicative frame δεν (+ θα). A clause already introduced by να or ας keeps that particle and selects μη(ν). A direct “don't” command begins with μη(ν). Then place every weak object pronoun after those particles and immediately before the verb. Finally, if a negative word such as κανείς or τίποτα is present, keep the verbal negator too. This sequence is more reliable than translating English not word for word because English uses one negator across environments that Greek keeps grammatically separate.
The distinction is neutral across everyday speech and formal writing; it is not a politeness choice. Politeness may change the person or the surrounding request, but it never licenses δεν in a negative να-clause or μη(ν) in a plain indicative assertion.
Common Mistakes
❌ Θέλω να δεν αργήσεις.
Incorrect—a negative να-clause uses μη(ν), not δεν.
✅ Θέλω να μην αργήσεις.
thélo na min aryísis
I want you not to be late.
❌ Μη ανησυχείς για μένα.
Incorrect—before a vowel, μη keeps final -ν.
✅ Μην ανησυχείς για μένα.
min anisichís ya ména
Don't worry about me.
❌ Κανένα λεωφορείο πέρασε από τη στάση.
Incorrect—a negative subject requires negative concord with δεν.
✅ Κανένα λεωφορείο δεν πέρασε από τη στάση.
kanéna leoforío dhen pérase apó ti stási
No bus went past the stop.
Key Takeaways
- Indicative statements use δεν, with optional future θα: δεν ξέρω, δεν ήρθε, δεν θα πάω.
- Subjunctive clauses use να / ας + μη(ν); prohibitions use μη(ν) directly.
- The order is particle(s) + clitic(s) + verb: δεν θα σου το πω, να μην το κάνεις.
- Μη / μην alternates by the following sound; it is not a register contrast.
- Greek requires negative concord: Δεν είπα τίποτα, Κανείς δεν ήρθε.
Related Topics
- Negating With δενA1 — How δεν negates whole indicative clauses, including clauses with noun, adjective, and prepositional predicates, and how όχι isolates a single contrasting constituent.
- δεν vs μη(ν)A2 — Choose δεν for indicative facts and μη(ν) inside command, subjunctive, purpose, warning, and fear frames.
- Negative Commands and ProhibitionsA2 — How Greek scales prohibitions from direct public commands to impersonal official notices, polite requests, and softened advice.
- Double Negation (Negative Concord)A2 — Why Greek requires δεν together with negative words—even when κανείς, τίποτα, ποτέ, or πουθενά comes before the verb.
- Negative Words: κανένας, τίποτα, ποτέB1 — The Greek words that mean no-/never with negation but any-/ever in questions and conditions, plus ούτε…ούτε and ούτε καν.