The paired construction nek … nek … means “neither … nor …” and gives equal negative scope to every coordinated alternative. Nek Nora nek Leo venis says that Nora did not come and Leo did not come. Because nek itself carries negation, the normal paired construction does not need an extra ne.
This is coordination, not subordination: the linked parts have the same grammatical status. They may be subjects, objects, descriptions, adverbials, infinitives, or complete finite clauses. The repeated linker makes the parallel structure visible and presents the alternatives as a single negative set.
The core meaning: kaj … kaj plus negation
PMEG analyzes paired nek as the negative counterpart of emphatic kaj … kaj. Compare:
Kaj Nora kaj Leo venis al la kunveno.
Both Nora and Leo came to the meeting.
Nek Nora nek Leo venis al la kunveno.
Neither Nora nor Leo came to the meeting.
The second sentence denies each member separately. It is equivalent in truth conditions to “Nora did not come, and Leo did not come,” but the paired form packages them as parallel alternatives.
Mi mendis nek kafon nek teon; mi petis nur akvon.
I ordered neither coffee nor tea; I asked only for water.
La ĉambro estis nek pura nek komforta.
The room was neither clean nor comfortable.
What nek … nek can coordinate
The paired items must do the same grammatical job. This requirement is more important than their length.
| Linked unit | Pattern | Example |
|---|---|---|
| subjects | nek noun phrase nek noun phrase | Nek la direktoro nek la sekretario respondis. |
| objects | nek object nek object | Mi trovis nek la ŝlosilon nek la monujon. |
| descriptions | nek adjective nek adjective | La propono estas nek nova nek praktika. |
| adverbials | nek phrase nek phrase | Ni renkontiĝos nek hodiaŭ nek morgaŭ. |
| infinitives | nek infinitive nek infinitive | Ŝi volis nek plendi nek kulpigi iun. |
| finite clauses | nek clause nek clause | Nek ŝi telefonis, nek mi skribis. |
Ni povis nek malfermi la pordon nek voki la posedanton.
We could neither open the door nor call the owner.
La pakaĵo alvenis nek ĝustatempe nek en bona stato.
The package arrived neither on time nor in good condition.
Parallel case marking remains necessary. If two alternatives are direct objects, both take -n:
Mi konas nek la novan instruiston nek lian asistanton.
I know neither the new teacher nor his assistant.
When one preposition governs both short alternatives, it can stand before the entire pair: kun nek Ana nek Leo is possible, though repeating it often reads more clearly: nek kun Ana nek kun Leo. For long or contrastive phrases, repetition is the safer pedagogical choice.
Paired nek versus single nek
Single nek normally adds another negative item after a negative statement. It means “and also not” or “nor.”
Mi ne ricevis la fakturon, nek mi trovis ĝin en la spam-dosierujo.
I did not receive the invoice, nor did I find it in the spam folder.
Ŝi ne manĝas viandon nek fiŝon.
She eats neither meat nor fish.
In the second example, ne negates manĝas viandon, and the following nek fiŝon adds a second negative object. Paired nek … nek instead supplies all the required negation itself:
Ŝi manĝas nek viandon nek fiŝon.
She eats neither meat nor fish.
Both patterns are foundational and natural. Choose one coherent structure:
- ne X nek Y: first negate the predicate or first item, then add another negative;
- nek X nek Y: present both items from the outset as a paired negative set.
Avoid mechanically combining both as ne … nek X nek Y when the extra ne has no separate scope. That creates redundant or potentially confusing negation.
Complete clauses remain finite and independent
When nek … nek coordinates full clauses, each clause has its own finite verb. Their tense and mood are chosen for their own meanings; nek does not impose a verb form.
Nek la kliento respondis hieraŭ, nek la teknikisto telefonos hodiaŭ.
Neither did the client answer yesterday, nor will the technician call today.
The past respondis and future telefonos are independent. Coordination does not create English-style sequence of tenses and does not force matching endings. Matching forms are common because coordinated events often share time, not because grammar requires them.
Nek malfermu la ligilon, nek sendu vian pasvorton al iu.
Neither open the link nor send your password to anyone.
Here both verbs use the volitive -u because both are negative instructions. With statements, use -as, -is, -os, or -us according to the actual time or hypothetical status.
Scope with shared material
Repeated nek should stand immediately before the alternatives it coordinates. This placement tells the reader what is being denied.
Leo nek telefonis nek sendis mesaĝon.
Leo neither phoned nor sent a message.
Nek Leo telefonis nek Nora sendis mesaĝon.
Neither did Leo phone nor did Nora send a message.
The first shares the subject Leo and coordinates two predicates. The second coordinates two whole clauses with different subjects. Moving the first nek therefore changes the size of the coordinated units.
Shared verbs and complements may be omitted when recovery is easy:
La rabato validas nek por elektronikaj aparatoj nek por jam rabatitaj varoj.
The discount applies neither to electronic devices nor to goods already discounted.
The verb validas serves both prepositional phrases. Do not omit material if the result makes the two halves grammatically unequal.
More than two alternatives
The construction can be plural: repeat nek before every member when each is explicitly excluded.
En la dosiero mankas nek la kontrakto, nek la fakturo, nek la kvitanco—neniu dokumento mankas.
Neither the contract, nor the invoice, nor the receipt is missing—no document is missing.
That example is deliberately contrastive: because mankas itself means “is absent,” negating each subject yields the positive conclusion that all documents are present. Lexical meaning still matters; nek does not always make the real-world situation “more negative.”
In ordinary short lists, commas are optional before repeated nek. They become useful when the members are long, when each is separately emphasized, or when full clauses are coordinated. Do not copy an English punctuation rule mechanically. Use punctuation to display the grouping and pauses of the Esperanto sentence.
Questions and short answers
The whole coordinated proposition can occur inside a ĉu question:
— Ĉu nek Ana nek Leo povos veni? — Bedaŭrinde ne; ambaŭ laboros ĝis malfrue.
— Will neither Ana nor Leo be able to come? — Unfortunately not; both will work late.
For a simple alternative question such as Ĉu vi havas aŭton aŭ biciklon?, the compact answer Nek, nek is attested and means “neither one.” In careful conversation, the fuller Mi havas nek aŭton nek biciklon is clearer, especially for international listeners.
Information structure and register
Paired nek foregrounds the completeness of the exclusion. Mi ne havas aŭton nek biciklon is a neutral report. Mi havas nek aŭton nek biciklon more strongly presents the two rejected alternatives as a balanced pair. Both are neutral-register Esperanto; repeated nek is not inherently (formal) or (literary).
The positive and alternative counterparts use the same principle of balanced placement. Compare them on the kaj … kaj and aŭ … aŭ page; for ordinary negation outside coordination, see clause negation with ne.
At C1 level, the main skill is not memorizing “neither/nor,” but controlling parallelism. Long paired clauses are easy to lose track of. Keep corresponding elements in corresponding positions, repeat a preposition or introducer when it prevents a false attachment, and prefer two sentences if the coordination becomes opaque.
Common Mistakes
1. Adding an unnecessary ne to paired nek.
❌ Mi ne elektis nek la ruĝan nek la bluan modelon.
Confusing for the intended simple meaning ‘I chose neither model’ because ne and the paired nek overlap.
✅ Mi elektis nek la ruĝan nek la bluan modelon.
I chose neither the red model nor the blue one.
2. Marking only one coordinated object with -n.
❌ Mi renkontis nek Anan nek Petro.
Incorrect — both alternatives are direct objects.
✅ Mi renkontis nek Anan nek Petron.
I met neither Ana nor Petro.
3. Using aŭ where both alternatives are denied.
❌ Mi trinkas aŭ kafon aŭ teon.
Wrong for ‘I drink neither’; this says one of the two alternatives is chosen.
✅ Mi trinkas nek kafon nek teon.
I drink neither coffee nor tea.
4. Coordinating unequal structures.
❌ Ŝi volas nek vojaĝi nek novan laboron.
Faulty parallelism — one member is an infinitive and the other is a noun phrase.
✅ Ŝi volas nek vojaĝi nek serĉi novan laboron.
She wants neither to travel nor to look for a new job.
5. Using nek as a subordinate clause introducer.
❌ Mi ne scias nek ili partoprenos.
Incorrect — the dependent yes/no question needs ĉu.
✅ Mi ne scias, ĉu ili partoprenos.
I do not know whether they will participate.
Key Takeaways
- Nek X nek Y gives equal negative scope to X and Y and normally needs no extra ne.
- Single nek can add “nor / and also not” after an already negative statement.
- Coordinate comparable units and preserve their case, prepositions, and internal grammar.
- Full coordinated clauses keep independent tense and mood choices.
- Repetition and punctuation should make the scope of each nek immediately visible.
Now practice Esperanto
Reading grammar gets you part of the way. The exercises are where it sticks — free, no signup needed.
Start learning Esperanto →Related Topics
- Kaj: Addition and CoordinationA2 — Coordinate parallel words, phrases, and clauses with kaj while preserving their grammatical roles, tense, mood, and scope.
- Aŭ: AlternativesA2 — Coordinate alternative words, phrases, and clauses with aŭ while controlling exclusivity, scope, ellipsis, and punctuation.
- Kaj… Kaj… and Aŭ… Aŭ…C1 — How repeated kaj emphasizes that every alternative applies, while repeated aŭ presents an exhaustive choice among alternatives.
- Clause Negation with NeA1 — How to negate an Esperanto clause by placing ne before its finite verb, including commands, questions, and common scope contrasts.
- Negative ConcordA2 — Understand when one negative expression negates an Esperanto clause, when two negatives reverse each other, and when repetition merely intensifies.