Present Tense of 'Biti' (Short Forms)
Grammar Rule in 30 Seconds
Short forms of 'biti' (to be) are unstressed particles used to link subjects to predicates efficiently.
- Use short forms for standard statements: 'Ja sam umoran' (I am tired).
- Short forms cannot start a sentence; they must follow a word.
- In questions, add the particle 'li' after the short form: 'Jesi li tu?' (Are you there?).
Present Tense of 'Biti' (Short Forms)
| Person | Affirmative | Negative |
|---|---|---|
|
Ja (I)
|
sam
|
nisam
|
|
Ti (You)
|
si
|
nisi
|
|
On/Ona/Ono (He/She/It)
|
je
|
nije
|
|
Mi (We)
|
smo
|
nismo
|
|
Vi (You)
|
ste
|
niste
|
|
Oni/One/Ona (They)
|
su
|
nisu
|
Meanings
The short forms of the verb 'biti' act as auxiliary verbs to express states of being, identity, or existence.
Identity/State
Expressing who you are or how you feel.
“Ja sam srećan.”
“Ti si ovde.”
Interrogative
Asking about state or identity.
“Jesi li gladan?”
“Da li ste spremni?”
Negative
Negating the state of being.
“Nisam umoran.”
“Nisi kod kuće.”
Reference Table
| Form | Structure | Example |
|---|---|---|
|
Affirmative
|
Subject + Short Form
|
Ja sam ovde.
|
|
Negative
|
Subject + Negative Short Form
|
Ja nisam ovde.
|
|
Question
|
Short Form + li + Subject
|
Jesi li ti ovde?
|
|
Question (Alternative)
|
Da li + Subject + Short Form
|
Da li si ti ovde?
|
|
Short Answer (Yes)
|
Long Form (Jesam)
|
Jesam.
|
|
Short Answer (No)
|
Negative Short Form
|
Nisam.
|
Formalitätsspektrum
Da li ste spremni? (Asking someone if they are ready.)
Jeste li spremni? (Asking someone if they are ready.)
Jesi li spreman? (Asking someone if they are ready.)
Spreman? (Asking someone if they are ready.)
The 'Biti' Family
Singular
- sam I am
- si you are
- je he/she/it is
Plural
- smo we are
- ste you are
- su they are
Short vs. Long Forms
Question Formation
Is it a question?
Usage Scenarios
Identity
- • Ja sam Marko
- • Ti si student
Location
- • Mi smo ovde
- • Oni su tamo
States
- • Ja sam srećan
- • Ona je umorna
Beispiele nach Niveau
Ja sam student.
I am a student.
Ti si ovde.
You are here.
On je srećan.
He is happy.
Mi smo kod kuće.
We are at home.
Nisam gladan.
I am not hungry.
Jesi li umoran?
Are you tired?
Vi ste u pravu.
You are right.
Oni su spremni.
They are ready.
Da li si siguran da je to tačno?
Are you sure that it is correct?
Nismo znali da ste vi ovde.
We didn't know you were here.
Ona nije bila kod kuće juče.
She was not at home yesterday.
Jesu li oni već stigli?
Have they arrived already?
Iako smo umorni, nastavićemo rad.
Although we are tired, we will continue working.
Nije mi jasno zašto su oni ljuti.
It is not clear to me why they are angry.
Da li ste možda čuli za taj film?
Have you perhaps heard of that movie?
Ako nisi spreman, reci mi odmah.
If you are not ready, tell me immediately.
Jeste li svesni posledica vaših odluka?
Are you aware of the consequences of your decisions?
Nije bilo lako, ali smo uspeli.
It was not easy, but we succeeded.
Bili smo ubeđeni da su oni već otišli.
We were convinced that they had already left.
Nisam siguran da li je to najbolja opcija.
I am not sure if that is the best option.
Nije da nismo hteli, već nismo mogli.
It is not that we didn't want to, but we couldn't.
Jesu li to zaista oni ljudi o kojima smo pričali?
Are those really the people we were talking about?
Niste li vi možda zaboravili na naš dogovor?
Haven't you perhaps forgotten our agreement?
Svi smo mi ljudi, zar ne?
We are all human, aren't we?
Leicht verwechselbar
Learners often use long forms (jesam) in neutral sentences.
Learners forget the 'li' particle.
Learners start sentences with short forms.
Häufige Fehler
Sam ja umoran.
Ja sam umoran.
Ja jesam umoran.
Ja sam umoran.
Ti si umoran?
Jesi li ti umoran?
On je umoran.
On je umoran.
Nisam ja umoran.
Ja nisam umoran.
Da li ti si umoran?
Da li si ti umoran?
Oni su umorni.
Oni su umorni.
Ja sam danas umoran.
Ja sam danas umoran.
Jeste li vi spremni?
Jeste li vi spremni?
Nije bilo lako.
Nije bilo lako.
Jesam ja to rekao?
Da li sam ja to rekao?
Nisam bio siguran.
Nisam bio siguran.
Oni su već bili tamo.
Oni su već bili tamo.
Satzmuster
Ja ___ umoran.
___ li ti spreman?
Mi ___ kod kuće.
Oni ___ već stigli.
Real World Usage
Gde si?
Ja sam gladan.
Ja sam spreman za rad.
Jesu li oni stigli?
Ja sam ovde!
Ja sam u prilogu...
The Second Position Rule
Don't Start with 'Sam'
Use 'li' for Questions
Greeting with 'Gde si?'
Smart Tips
Always use 'li' or 'Da li' to ensure it sounds like a question.
Use the long form 'jesam' instead of 'sam'.
Place the short form as the second word.
Use 'Gde si?' as a friendly 'Hi'.
Aussprache
Stress
Short forms are never stressed; they are pronounced as part of the previous word.
Intonation
In questions, the pitch rises at the end of the sentence.
Statement
Ja sam ovde. ↓
Falling intonation for facts.
Question
Jesi li tu? ↑
Rising intonation for confirmation.
Einprägen
Eselsbrücke
Remember: 'Sam, si, je, smo, ste, su'—it sounds like a rhythmic chant. Just add the subject before it!
Visuelle Assoziation
Imagine a glue stick labeled 'Biti'. Every time you say 'Ja', you glue 'sam' right behind it. If you try to put 'sam' first, the glue doesn't work!
Rhyme
Ja sam, ti si, on je tu, Mi smo, vi ste, oni su.
Story
Marko is a traveler. He introduces himself: 'Ja sam Marko.' He asks his friend: 'Jesi li ti gladan?' His friend replies: 'Nisam, ali oni su.'
Word Web
Herausforderung
Write 5 sentences about your day using 'sam', 'si', 'je', 'smo', and 'su' in 5 minutes.
Kulturelle Hinweise
In Serbia, 'Gde si?' is a common greeting, not just a question about location.
The usage is identical, but 'Da li' is less common than just using 'li' in some regions.
Similar to Serbian, 'Gde si?' is very common in informal settings.
The short forms are derived from the Old Church Slavonic verb 'byti'.
Gesprächseinstiege
Kako si danas?
Da li si gladan?
Gde si sada?
Jesi li siguran u to?
Tagebuch-Impulse
Häufige Fehler
Test Yourself
Ja ___ student.
Ti ___ ovde.
Find and fix the mistake:
Sam ja umoran.
li / ti / spreman / jesi
We are here.
Answer starts with: Mi ...
Ja ___ umoran.
Oni ___ spremni.
Vi ste spremni.
Score: /8
Ubungsaufgaben
8 exercisesJa ___ student.
Ti ___ ovde.
Find and fix the mistake:
Sam ja umoran.
li / ti / spreman / jesi
We are here.
Ja ___ umoran.
Oni ___ spremni.
Vi ste spremni.
Score: /8
FAQ (8)
No, never. Short forms must follow another word.
'Je' is the short form, 'jeste' is the long form used for emphasis.
It is a particle that marks a question in Serbian.
No, it is often a casual greeting.
Add 'ni-' to the short form (e.g., 'nisam').
Use it for emphasis or at the start of a sentence.
Yes, the forms are identical.
It's okay! The verb form often implies the subject.
Scaffolded Practice
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Mastery Progress
Needs Practice
Improving
Strong
Mastered
In Other Languages
soy, eres, es...
Serbian short forms must follow a word; Spanish verbs can start a sentence.
suis, es, est...
French doesn't have the enclitic placement rule.
bin, bist, ist...
German verb position is determined by sentence structure, not clitic status.
desu
Serbian places the copula in the second position; Japanese places it at the end.
ana (I am)
Serbian requires the copula; Arabic often implies it.
shi
Serbian 'biti' conjugates for all persons; Chinese 'shi' is invariant.
