Negative Concord (Double Negation)

English schoolteachers warn against the „double negative" — „I don't know nothing" is branded an error. Croatian does the exact opposite: the double negative is compulsory. When a sentence contains a negative word like nitko („no one") or ništa („nothing"), the verb must also be negated. Nitko ne zna — literally „no one not knows" — is the only grammatical way to say „nobody knows." This is negative concord, and it is not sloppy speech or dialect: it is the bedrock rule of Croatian negation. This page shows how the ni- words work, why the negations stack instead of cancelling, and the strange way prepositions wedge themselves inside a negative word.

The ni-words

Croatian builds its negative quantifiers by prefixing ni- to a question word. They are the „no-" series, and every one of them triggers a negated verb.

The rule: the verb must also be negated

This is the whole point of the page. Whenever a ni-*word appears, the verb takes its own negation — *ne before an ordinary verb, or a fused negative (nije, nema, nisam…) for the three special verbs. The negative word and the negative verb are a team; neither one alone is grammatical.

Drop the ne and the sentence breaks. *Nitko zna is not a milder or more formal version of „nobody knows" — to a Croatian ear it is simply ungrammatical, the way „nobody know" is to an English ear. The English instinct to delete the second negative is the single most reliable way to spot a non-native speaker.

Negatives stack — they don't cancel

Because this is concord (agreement) rather than arithmetic, several ni-words can pile into one clause and they do **not cancel one another out. Each adds to a single overall negation, and the verb is negated exactly once no matter how many *ni-*words there are. Think of it like gender or case agreement spreading across a phrase — the whole clause agrees in being negative.

The English translations show the contrast vividly: English switches to „ever / anyone / anything" to avoid stacking real negatives, because in English they would cancel. Croatian keeps every word negative and lets them agree. Do not try to „balance" the negatives by making some positive — that would actually be the error.

Prepositions split the ni-word: tmesis

Here is a structure with no English parallel whatsoever. When a ni-pronoun is governed by a preposition, the preposition does **not sit in front of the whole word. Instead the ni breaks off, stands first, and the preposition slips inside, in front of the declined question-word core. This splitting is called tmesis.

So „with no one" is ni s kim (never *s nikim); „about nothing" is *ni o čemu; „for nothing" is ni za što; „from no one" is ni od koga. The pattern is always ni + preposition + case form.

Contrast: the i-series „any" in questions

When you're not making a negative statement — typically in a question or a conditional — Croatian doesn't use the ni-words at all. It uses the **i-series „any" words: itko („anyone"), išta („anything"), ikad („ever"), igdje („anywhere"). These do not trigger a negated verb, because they aren't negative.

The split is clean: a statement of absence uses a ni-*word and forces the verb negative (*Nikoga nema — „there's no one"); a question or condition about possible existence uses an i-*word and leaves the verb positive (*Ima li ikoga — „is there anyone"). The full inventory of these „any" forms is on indefinite pronouns.

Common Mistakes

Key Takeaways

• Negative concord is obligatory: a ni-*word (*nitko, ništa, nikad, nigdje, nijedan, nikakav) always co-occurs with a negated verb. Nitko ne zna is the only correct form.
• The negatives agree, they don't cancel — stack as many ni-words as you like, the verb is negated just **once: Nikad nikome ništa ne kažem.
• Under a preposition, the ni-word **splits (tmesis): ni s kim, ni o čemu, ni za što — pattern ni + preposition + case form. There is no English equivalent.
• In questions and conditionals use the non-negative i-series (itko, išta, ikad) with a positive verb: Ima li ikoga.
• The English single-negative pattern (*Nitko zna) is ungrammatical in Croatian — keep every negative.