Conjunctions of Purpose (kako bi, da bi)
Grammar Rule in 30 Seconds
Use 'kako bi' or 'da bi' followed by an infinitive or conditional to explain WHY an action is performed.
- Use 'kako bi' + infinitive when the subject of both clauses is the same: 'Učim kako bih znao'.
- Use 'da bi' + conditional (bih, bi, bi...) when you want to sound slightly more casual or direct.
- Always conjugate the 'bi' part (bih, bi, bi, bismo, biste, bi) if not using the infinitive shortcut.
Conjugation of the Purpose Particle 'bi'
| Subject | Particle | Usage with Infinitive | Usage with L-Participle |
|---|---|---|---|
|
Ja (I)
|
bih
|
kako bih raditi (rare)
|
kako bih radio
|
|
Ti (You)
|
bi
|
kako bi raditi (rare)
|
kako bi radio
|
|
On/Ona/Ono (He/She/It)
|
bi
|
kako bi raditi
|
kako bi radio
|
|
Mi (We)
|
bismo
|
kako bismo raditi (rare)
|
kako bismo radili
|
|
Vi (You pl.)
|
biste
|
kako biste raditi (rare)
|
kako biste radili
|
|
Oni/One/Ona (They)
|
bi
|
kako bi raditi
|
kako bi radili
|
Common Shortcuts in Purpose Clauses
| Full Form | Short Form (Infinitive) | Context |
|---|---|---|
|
kako bih učio
|
kako bi učiti
|
Same subject (I)
|
|
kako bismo vidjeli
|
kako bi vidjeti
|
Same subject (We)
|
|
da bismo znali
|
da bi znati
|
Same subject (We)
|
|
da bih kupio
|
da bi kupiti
|
Same subject (I)
|
Meanings
These conjunctions introduce subordinate clauses that express the purpose, intent, or goal of the action described in the main clause.
Direct Purpose (Same Subject)
Expressing a goal where the person doing the action is the same person achieving the goal. Usually uses the infinitive.
“Vježbam svaki dan kako bih ostao zdrav.”
“Otvorio je prozor da bi prozračio sobu.”
Intended Result (Different Subjects)
Expressing a goal where the action of one person is intended to influence or enable another person's action.
“Govorim polako kako bi me ti razumio.”
“Dala sam mu ključeve da bi on mogao ući.”
Formal/Stylistic Purpose
Using 'kako bi' specifically to avoid repetition of 'da' in complex sentences or to sound more academic.
“Analiziramo podatke kako bi se utvrdili trendovi.”
“Potrebno je intervenirati kako bi se spriječila šteta.”
Reference Table
| Type | Structure | Example |
|---|---|---|
|
Affirmative (Same Subject)
|
Kako bi + Infinitive
|
Učim kako bi znao.
|
|
Affirmative (Different Subject)
|
Kako + bi (conjugated) + L-participle
|
Pomažem mu kako bi on uspio.
|
|
Negative (Same Subject)
|
Kako ne bi + Infinitive
|
Pazim kako ne bi pao.
|
|
Negative (Different Subject)
|
Kako + ne + bi (conjugated) + L-participle
|
Šutim kako me ne bi čuli.
|
|
Formal Variation
|
Da bi + Infinitive
|
Radimo da bi zaradili.
|
|
Casual Variation
|
Da + Present Tense
|
Idem da kupim.
|
Espectro de formalidade
Učim kako bih uspješno položio ispit. (Education)
Učim da bih položio ispit. (Education)
Učim da prođem ispit. (Education)
Štrebam da riješim to. (Education)
The Purpose Map
Same Subject
- Infinitive to do something
Different Subject
- Conditional so that someone else does
Choosing the Right Form
Is the subject the same?
Is it a formal context?
Exemplos por nível
Idem u školu da učim.
I go to school to learn.
Pijem vodu da nisam žedan.
I drink water so I'm not thirsty.
Kupujem kruh da jedem.
I buy bread to eat.
Zovem mamu da pričamo.
I call mom so we can talk.
Učim hrvatski da bih živio u Zagrebu.
I'm learning Croatian so that I could live in Zagreb.
Trčim da bih bio zdrav.
I run so that I would be healthy.
Štedim novac da bih kupio auto.
I'm saving money so that I would buy a car.
Idem rano spavati da bih se odmorio.
I go to sleep early so that I would rest.
Čitam vijesti kako bih znao što se događa.
I read the news in order to know what is happening.
Oni rade naporno kako bi uspjeli.
They work hard in order to succeed.
Pomažem ti kako bi ti bilo lakše.
I am helping you so that it would be easier for you.
Putujemo kako bismo upoznali nove ljude.
We travel in order to meet new people.
Tvrtka je uvela nove mjere kako bi se povećala produktivnost.
The company introduced new measures in order to increase productivity.
Govornik je povisio ton kako bi ga svi čuli.
The speaker raised his voice so that everyone would hear him.
Potrebno je redovito vježbati kako bi se održala kondicija.
It is necessary to exercise regularly in order to maintain fitness.
Analizirali smo tržište kako bismo donijeli bolju odluku.
We analyzed the market in order to make a better decision.
Autor koristi arhaizme kako bi dočarao atmosferu prošlih stoljeća.
The author uses archaisms in order to evoke the atmosphere of past centuries.
Zakon je izmijenjen kako bi se uskladio s europskim regulativama.
The law was amended in order to align with European regulations.
Poduzete su sve mjere opreza kako ne bi došlo do neželjenih posljedica.
All precautions were taken so that unwanted consequences would not occur.
Izlaganje je strukturirano tako kako bi se naglasila ključna teza.
The presentation is structured in such a way as to emphasize the key thesis.
Ovaj se diskurs nameće kako bi se redefinirali temeljni društveni konstrukti.
This discourse is imposed in order to redefine fundamental social constructs.
Uporaba pasiva ovdje služi kako bi se otklonila izravna odgovornost subjekta.
The use of the passive here serves to remove the direct responsibility of the subject.
Pjesnik rabi inverziju kako bi ritmički uravnotežio stihove.
The poet uses inversion in order to rhythmically balance the verses.
Diplomatski su napori intenzivirani kako bi se preduhitrila potencijalna eskalacija sukoba.
Diplomatic efforts have been intensified in order to forestall a potential escalation of the conflict.
Fácil de confundir
Learners mix up purpose (in order to) with comparison (as if).
Using 'da' for everything makes speech repetitive.
Erros comuns
Idem u trgovinu za kupiti kruh.
Idem u trgovinu da kupim kruh.
Ja želim kako bi učiti.
Želim učiti.
Oni idu da bi jeli.
Idu jesti.
Pijem vodu kako bi živim.
Pijem vodu da bih živio.
Mi radimo kako bi naučili.
Mi radimo kako bismo naučili.
Učim da bi bio pametan.
Učim da bih bio pametan.
Dala sam mu novac kako bi on kupi.
Dala sam mu novac kako bi on kupio.
Pazim kako ne bi pogriješim.
Pazim kako ne bih pogriješio.
On je došao kako bi me vidi.
On je došao kako bi me vidio.
Štedimo da bi putovali.
Štedimo kako bismo putovali.
Poduzeo je korake kako bi se projekt završio.
Poduzeo je korake kako bi projekt bio završen.
Govorim polako kako bi me razumjeli.
Govorim polako kako biste me razumjeli.
Padrões de frases
Radim ___ kako bih ___.
Potrebno je ___ kako bi se ___.
Real World Usage
Prijavio sam se kako bih unaprijedio svoje vještine.
Pišem ti da bih te pitao za kavu.
Smanjite vatru kako jelo ne bi zagorjelo.
Policija je blokirala cestu kako bi osigurala prolaz.
Dođite ranije kako biste izbjegli gužvu.
Objavljujem ovo kako bih podijelio sreću s vama.
The 'Da' Repetition Fix
Watch the Subject!
Infinitive is King
Formal vs. Informal
Smart Tips
Replace the 'da' that expresses purpose with 'kako bi'.
Use the infinitive shortcut! It works for all persons if the subject is the same.
Always use 'kako bi' instead of 'da' to express your intentions.
Use 'kako ne bi' + infinitive.
Pronúncia
Clitic placement
The particle 'bi' is a clitic and usually wants to be in the second position of the subordinate clause.
Rising-Falling
Učim (rise) kako bih znao (fall).
Standard declarative purpose.
Memorize
Mnemônico
K-B (Kako Bi) = Key to Business. Use it to sound professional about your goals.
Associação visual
Imagine an archer (the action) aiming at a target (the purpose). The arrow is the 'kako bi' bridge connecting the two.
Rhyme
Da bi i kako bi, cilj ti objasni.
Story
Marko wanted to travel. He worked hard *kako bi* earned money. He bought a map *da bi* knew the way. He learned English *kako bi* talked to people.
Word Web
Desafio
Write 3 sentences about your career goals using 'kako bih' and the infinitive.
Notas culturais
Strictly distinguishes between 'bih', 'bi', 'bismo', 'biste'. Using 'bi' for all persons is considered non-standard dialectal influence.
Often shortens 'da bi' to just 'da' or uses 'za' + infinitive (influenced by Italian), which is strictly non-standard.
The particle 'bi' originates from the Old Church Slavonic aorist form of the verb 'biti' (to be).
Iniciadores de conversa
Što radiš kako bi ostao u formi?
Zašto učiš hrvatski jezik?
Što bi vlada trebala učiniti kako bi poboljšala životni standard?
Temas para diário
Erros comuns
Test Yourself
Mi učimo naporno kako ___ položili ispit.
Popeo se na brdo ___ ___ bolje.
Find and fix the mistake:
Ja štedim novac kako bi kupio auto.
Idem u teretanu jer želim vježbati.
Match each item on the left with its pair on the right:
Select the formal version of 'I am calling to ask something.'
Pazi ___ ___ ___ pao.
Dajem ti knjigu kako ___ ti učio.
Score: /8
Exercicios praticos
8 exercisesMi učimo naporno kako ___ položili ispit.
Popeo se na brdo ___ ___ bolje.
Find and fix the mistake:
Ja štedim novac kako bi kupio auto.
Idem u teretanu jer želim vježbati.
1. Ja, 2. Mi, 3. Vi, 4. Oni
Select the formal version of 'I am calling to ask something.'
Pazi ___ ___ ___ pao.
Dajem ti knjigu kako ___ ti učio.
Score: /8
Perguntas frequentes (8)
Not always. In casual speech, `da` is more natural. Use `kako bi` in writing or when you want to be very clear about your purpose.
No, it is used with the infinitive or the L-participle (conditional). You cannot say `kako bi sam radio` (present) or `kako bi sam radio` (past) in that way.
They are almost identical in meaning. `Kako bi` is slightly more formal and helps avoid repeating the word `da` too many times.
In the same-subject shortcut (e.g., *kako bi raditi*), `bi` usually stays as `bi`. However, it is more precise to match it: *kako bih raditi* (though this is less common than just *kako bih radio*).
Yes! For example: `Kako bi projekt uspio, moramo surađivati.` (In order for the project to succeed, we must cooperate).
It is part of the standard language. In dialects (like Kajkavian or Chakavian), people might use different structures, but everyone understands `kako bi`.
Journalists use it to maintain a formal tone and to clearly link government actions to their intended goals.
The most common mistake is using the 3rd person `bi` for all subjects, like saying `mi bi` instead of `mi bismo`.
Scaffolded Practice
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Mastery Progress
Needs Practice
Improving
Strong
Mastered
In Other Languages
in order to / so that
English doesn't conjugate the 'to' in 'to do', but Croatian conjugates 'bi' into 'bih, bismo' etc.
para que + subjunctive
Spanish 'para' can be used with an infinitive directly, while Croatian 'da bi'/'kako bi' always includes the particle 'bi'.
um ... zu / damit
German puts the verb at the very end of the clause.
ために (tame ni)
Japanese is head-final, so the purpose comes before the 'tame ni' marker.
لِـ (li-) / كَيْ (kay)
Arabic particles are often prefixed directly to the verb.
为了 (wèile)
Chinese has no verb conjugation or mood markers like 'bi'.
