Grammar Rule in 30 Seconds
The dual number is a special grammatical form used exclusively for exactly two items, people, or actions.
- Use the dual for pairs: 'Mes du einame' (We two are going).
- Nouns, adjectives, and verbs must all agree in the dual form.
- It is largely archaic in modern speech but preserved in dialects and literature.
Dual Number Agreement
| Person | Pronoun | Noun (Nom) | Verb (Pres) |
|---|---|---|---|
|
1st
|
Mudu
|
broliu
|
einava
|
|
2nd
|
Judu
|
broliu
|
einata
|
|
3rd
|
Jie (du)
|
broliu
|
eina
|
Meanings
The dual number is a grammatical category that indicates a quantity of exactly two, distinct from the singular (one) and plural (three or more).
Natural Pairs
Used for body parts or items that naturally come in pairs.
“Abi rankos yra švarios.”
“Mano akys mato.”
Literary/Archaic
Used in high-register literature or folk songs to emphasize duality.
“Du broliai jojo per laukus.”
“Mudu su tavimi eisime.”
Reference Table
| Form | Structure | Example |
|---|---|---|
|
Affirmative
|
Subject(Dual) + Verb(Dual)
|
Du broliu eina.
|
|
Negative
|
Ne + Subject(Dual) + Verb(Dual)
|
Du broliu neina.
|
|
Question
|
Ar + Subject(Dual) + Verb(Dual)?
|
Ar du broliu eina?
|
|
Both
|
Abi + Noun(Dual)
|
Abi rankos.
|
|
We two
|
Mudu + Verb(Dual)
|
Mudu einava.
|
|
You two
|
Judu + Verb(Dual)
|
Judu einata.
|
正式程度
Du broliu eina. (Describing a pair of siblings.)
Du broliai eina. (Describing a pair of siblings.)
Du broliai eina. (Describing a pair of siblings.)
Du broliai varo. (Describing a pair of siblings.)
Number Systems
按水平分级的例句
Du broliu eina.
Two brothers are going.
Abi rankos.
Both hands.
Mudu einame.
We two are going.
Dvi seseri.
Two sisters.
Judu abu esate geri.
Both of you are good.
Dvi akys žiūri.
Two eyes are looking.
Mudu su tavimi dirbame.
We two are working.
Du draugu kalbasi.
Two friends are talking.
Abi kojos pavargo po ilgo ėjimo.
Both legs got tired after a long walk.
Mudu su broliu visada buvome kartu.
My brother and I were always together.
Du vilku bėgo per mišką.
Two wolves ran through the forest.
Dvi rankos darbą dirba.
Two hands do the work.
Judu judu, o mes stovime.
You two move, while we stand.
Abi pusės sutiko su sąlygomis.
Both sides agreed to the terms.
Dvi gėlės žydi sode.
Two flowers are blooming in the garden.
Mudu su ja niekada nesutarėme.
She and I never got along.
Du broliu, vienas kitą mylėdami, išėjo į pasaulį.
Two brothers, loving each other, went out into the world.
Abi akys, tarsi du žiburiai, švietė tamsoje.
Both eyes, like two lights, shone in the darkness.
Mudu su tavimi esame vieninteliai liudininkai.
You and I are the only witnesses.
Dvi širdys plakė vienu ritmu.
Two hearts beat in one rhythm.
Tautosaka byloja: du broliu, dvi seseri, viena lemtis.
Folklore tells: two brothers, two sisters, one fate.
Mudu su juo, kaip du atskiri pasauliai, susidūrėme.
He and I, like two separate worlds, collided.
Abi rankos, sujungtos maldai, virpėjo.
Both hands, joined in prayer, trembled.
Dvi tiesos, viena melo šaknis.
Two truths, one root of lies.
容易混淆
Learners use plural for everything.
常见错误
Du broliai eina.
Du broliu eina.
Mudu einame.
Mudu einava.
Dvi kavas prašau.
Dvi kavas (plural).
Judu abu esate.
Judu abu esata.
句型
Du ___ eina.
Real World Usage
Du broliu išėjo.
Abi seseri...
Dviskaita yra...
Dvi širdys...
Ši forma...
Mudu einam.
Don't force it
Agreement is key
Read folk songs
Respect the history
Smart Tips
Check if your subject is a pair.
Look for the -u ending.
Always check for 'two'.
Listen for dual forms.
发音
Dual endings
The 'u' in 'broliu' is a long vowel.
Formal
Du broliu eina ↘
Declarative statement.
记住它
记忆技巧
Think of the 'u' in 'broliu' as two arms reaching out to hold two things.
视觉联想
Imagine a pair of twins standing together; they are always linked by the letter 'u' in their names.
Rhyme
Du broliu, dvi seseri, kartu jie eina, dviskaita visada dainuoja.
Story
Once there were two brothers who only spoke in pairs. Every time they met someone, they used the dual form. The world thought they were poets, but they were just keeping the ancient language alive.
Word Web
挑战
Write a two-sentence story about two people using the dual form.
文化笔记
The dual is preserved in dainos (folk songs) to maintain rhythm and archaic beauty.
Inherited from Proto-Indo-European.
对话开场白
Ar žinai, kur vartojama dviskaita?
日记主题
常见错误
Test Yourself
Du ___ (brolis) eina.
Mudu ___ (eiti).
Find and fix the mistake:
Du broliai eina.
Mudu / eiti / namo
Match each item on the left with its pair on the right:
Abi rankos.
Dvi ___ (sesuo) kalbasi.
Find and fix the mistake:
Judu eina.
Score: /8
练习题
8 exercisesDu ___ (brolis) eina.
Mudu ___ (eiti).
Find and fix the mistake:
Du broliai eina.
Mudu / eiti / namo
Mudu -> ?
Abi rankos.
Dvi ___ (sesuo) kalbasi.
Find and fix the mistake:
Judu eina.
Score: /8
常见问题 (8)
It is mostly archaic but survives in literature and dialects.
If you are talking about exactly two things.
No, it will sound very strange.
Yes, theoretically, but it is non-productive.
Because it requires total agreement.
No, it is a separate category.
In folk songs and classical literature.
Use the plural.
Scaffolded Practice
1
2
3
4
Mastery Progress
Needs Practice
Improving
Strong
Mastered
In Other Languages
Dual (Muthanna)
Arabic dual is productive; Lithuanian is not.
None
German uses plural for two.
None
French uses plural.
None
Spanish uses plural.
None
Japanese uses context.
None
Chinese uses classifiers.
Learning Path
Prerequisites
Connected Grammar
Plural Nouns
ContrastThe plural is the default for >1.
Verb Conjugation
Builds OnDual verbs are a subset of conjugation.
