Odrični oblik glagola biti: nisam, nisi, nije
Za razliku od većine glagola, gde se rečca „ne“ piše odvojeno (ne znam, ne radim), glagol biti svoj odrični oblik gradi spojeno — negacija je već u samoj reči. Otuda nisam, nisi, nije u jednini i nismo, niste, nisu u množini. Sve počinje na „ni-“: zapamtite taj slog i imate svih šest oblika. Zato pišemo „Nisam umoran.“, a nikako „ne sam umoran“. Tu je i jedna fina razlika: dok enklitika „je“ ne može da otvori rečenicu, naglašeno „nije“ može da stoji samo, pa je sasvim prirodan kratak odgovor „Nije.“. Pravopisno, „nisam“ spada u svega četiri odrična oblika koja se pišu sastavljeno — uz nemam, neću i nemoj.
Primeri
- Nisam umoran. I am not tired.
- On nije ovde. He is not here.
- Nismo gladni. We are not hungry.
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Sve iz videa, u tekstu.
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You learned to say 'I am' in Serbian. Now you want to say 'I am not'. The obvious move — sticking 'ne' in front — is exactly the trap. Serbian fuses the 'not' right into the verb.
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Here's the core idea. Most Serbian verbs are negated with a separate little word 'ne' in front. But the verb 'to be' is special: its negative is a single fused word that already contains the 'not'.
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Look at how it's built. The positive forms are sam, si, je, and the negatives are nisam, nisi, nije. It's just 'ni' plus the verb, glued together. One word, with the 'no' already inside it.
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Here's the full set so you can see the pattern. Nisam, nisi, nije in the singular; nismo, niste, nisu in the plural. Every one starts with 'ni' — learn that single syllable and you've got all six. nisam, nisi, nije, nismo, niste, nisu
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Let's put it to work. To say 'I am not tired', you don't say 'ne sam' — you use the fused form nisam. Nisam umoran.
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For 'he is not here', the 'is not' is nije — again one word. Notice it can sit right after the subject, just like the positive 'je'. On nije ovde.
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And in the plural, 'we are not hungry' uses nismo. Same logic — 'ni' plus the ending for 'we'. No extra 'ne' anywhere. Nismo gladni.
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There's a bonus you get for free. The positive 'je' is a clitic — a weak little word that can't start a sentence. But the negative nije is strong: it can stand right at the front. So a one-word answer like 'Nije.' meaning 'It isn't' is perfectly natural. Nije.
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Now the mistake almost every learner makes. Because other verbs take 'ne' in front, people say 'ne sam' or 'ne je' for 'to be'. That's wrong. The 'ne' is already fused inside — say nisam, nije. nisam, nije
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One nuance to keep straight: this fused trick is only for 'to be'. Regular verbs still use a separate 'ne'. 'I don't know' is 'ne znam' — two words. Only 'biti' fuses. ne znam
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So lock in three things. The negative of 'to be' is one fused word starting with 'ni'. Never add a separate 'ne'. And unlike the positive 'je', the negative is strong enough to begin a sentence.