Grammar Rule in 30 Seconds
Use 'zbog' for a reason that already happened (cause) and 'radi' for a goal you want to achieve (purpose).
- Use 'zbog' for causes: 'Kasnim zbog kiše' (I'm late because of the rain).
- Use 'radi' for goals: 'Učim radi posla' (I study for the sake of a job).
- Both prepositions ALWAYS require the Genitive case for the following noun.
Genitive Endings for Nouns after Radi/Zbog
| Gender | Singular Ending | Plural Ending | Example (Singular) | Example (Plural) |
|---|---|---|---|---|
|
Masculine
|
-a
|
-a (long)
|
zbog prijatelja
|
zbog prijatelja
|
|
Feminine
|
-e
|
-a (long)
|
radi škole
|
radi škola
|
|
Neuter
|
-a
|
-a (long)
|
radi zdravlja
|
radi zdravlja
|
|
Pronoun (1st sg)
|
mene
|
nas
|
zbog mene
|
zbog nas
|
|
Pronoun (2nd sg)
|
tebe
|
vas
|
radi tebe
|
radi vas
|
|
Pronoun (3rd sg)
|
njega / nje
|
njih
|
zbog njega
|
zbog njih
|
Meanings
These prepositions explain the motivation behind an action, distinguishing between the external cause (zbog) and the internal intention (radi).
Cause/Reason (Zbog)
Indicates an external factor or event that forced or led to the current situation.
“Otkazali su let zbog magle.”
“Ne spavam zbog buke.”
Purpose/Goal (Radi)
Indicates the intention, aim, or desired outcome of an action.
“Štedim novac radi putovanja.”
“Vježbam radi zdravlja.”
Benefit/Sake (Radi)
Doing something for the benefit or for the sake of someone or something.
“Učinio sam to radi mira u kući.”
“Radi djece moramo biti strpljivi.”
Blame/Responsibility (Zbog)
Assigning the reason for a negative outcome to a specific person or thing.
“Izgubili smo zbog tvoje pogreške.”
“Zbog njega smo zakasnili.”
Legal/Official Justification (Radi)
Used in official documents to state the purpose of a procedure or law.
“Radi utvrđivanja činjenica...”
“Zatvoreno radi renoviranja.”
Reference Table
| Type | Preposition | Logic | Example |
|---|---|---|---|
|
Cause
|
Zbog
|
Backward (Reason)
|
Zbog kiše (Because of rain)
|
|
Purpose
|
Radi
|
Forward (Goal)
|
Radi novca (For the money)
|
|
Negative Cause
|
Zbog
|
Reason for failure
|
Zbog straha (Because of fear)
|
|
Benefit
|
Radi
|
For someone's sake
|
Radi djece (For the kids' sake)
|
|
Question (Cause)
|
Zašto?
|
Why?
|
Zašto kasniš? (Why are you late?)
|
|
Question (Purpose)
|
Radi čega?
|
For what purpose?
|
Radi čega učiš? (What are you studying for?)
|
|
Formal Purpose
|
Radi
|
Official reason
|
Radi renoviranja (For renovation)
|
|
Pronoun Cause
|
Zbog
|
Personal reason
|
Zbog mene (Because of me)
|
正式程度
Ovo činim radi Vaše dobrobiti. (helping someone)
Ovo radim radi tebe. (helping someone)
Ovo radim zbog tebe. (helping someone)
To ti je zbog tebe, stari. (helping someone)
The 'Why' Map
Cause (Zbog)
- Vrijeme Weather
- Gužva Traffic
- Bolest Illness
Purpose (Radi)
- Posao Job
- Uspjeh Success
- Zdravlje Health
Zbog vs. Radi
Which one to use?
Is it a goal you want to achieve?
Is it a reason that forced the action?
Common Genitive Pairs
Weather
- • zbog kiše
- • zbog snijega
- • zbog vjetra
Motivation
- • radi novca
- • radi ljubavi
- • radi karijere
按水平分级的例句
Kasnim zbog busa.
I'm late because of the bus.
Sretan sam zbog tebe.
I'm happy because of you.
Učim radi škole.
I study for school.
To je zbog kiše.
That is because of the rain.
Ne idem van zbog hladnoće.
I'm not going out because of the cold.
Štedim radi novog auta.
I'm saving for a new car.
Ona plače zbog filma.
She is crying because of the movie.
Pijem vodu radi zdravlja.
I drink water for health.
Otkazali su koncert zbog lošeg vremena.
They canceled the concert due to bad weather.
Došao sam u Zagreb radi posla.
I came to Zagreb for the sake of a job.
Sve radim radi tvoje sreće.
I do everything for your happiness.
Zbog gužve u prometu, zakasnio sam.
Because of the traffic jam, I was late.
Radi lakšeg razumijevanja, koristit ćemo primjere.
For easier understanding, we will use examples.
Zbog nedostatka dokaza, sud je odbacio tužbu.
Due to lack of evidence, the court dismissed the lawsuit.
Oni se svađaju zbog sitnica.
They argue over trifles (small things).
Vježbamo radi poboljšanja kondicije.
We exercise for the purpose of improving fitness.
Radi očuvanja tradicije, festival se održava svake godine.
For the sake of preserving tradition, the festival is held every year.
Zbog nepredviđenih okolnosti, moramo odgoditi sastanak.
Due to unforeseen circumstances, we must postpone the meeting.
Radi se o projektu pokrenutom radi zaštite okoliša.
It is a project started for the sake of environmental protection.
Zbog tvoje upornosti, uspjeli smo.
Thanks to (because of) your persistence, we succeeded.
Radi se o distinkciji koja se često gubi u kolokvijalnom govoru.
It is a distinction that is often lost in colloquial speech.
Zbog inherentne složenosti sustava, pogreške su neizbježne.
Due to the inherent complexity of the system, errors are inevitable.
Radi postizanja konsenzusa, pregovori su trajali satima.
In order to reach a consensus, negotiations lasted for hours.
Zbog previranja na tržištu, investitori su oprezni.
Due to market turmoil, investors are cautious.
容易混淆
Both can mean 'for'. Learners often use 'za' when they should use 'radi'.
Both mean 'because'. 'Zbog' is a preposition, 'jer' is a conjunction.
Both express purpose. 'Radi' takes a noun, 'da bi' takes a verb.
常见错误
zbog kiša
zbog kiše
radi ja
radi mene
zbog sretan
zbog sreće
radi posao
radi posla
Kasnim radi gužve.
Kasnim zbog gužve.
zbog loše vrijeme
zbog lošeg vremena
Učim zbog ispita.
Učim radi ispita.
zbog da sam umoran
jer sam umoran
radi kupiti kruh
radi kupovine kruha
zbog mojih prijatelji
zbog mojih prijatelja
radi utvrđivanje
radi utvrđivanja
zbog radi mira
radi mira
句型
Kasnim zbog ___.
Štedim novac radi ___.
Sve sam to učinio radi ___.
Zbog ___ nismo mogli doći.
Real World Usage
Kasnim 10 min zbog tramvaja.
Želim ovaj posao radi napredovanja.
Ovdje sam zbog bolova u leđima.
Let je otkazan zbog štrajka.
Hvala svima radi podrške!
Radi zaštite privatnosti, ime je tajno.
The Push vs. Pull Test
Genitive is King
Formal Radi
Native Slang
Smart Tips
Memorize the Genitive pronouns: mene, tebe, njega, nje, nas, vas, njih.
Use 'Radi' to state your purpose. It sounds more intentional and professional.
The next word is almost always a verbal noun ending in -nja or -a.
Ask yourself: 'Is this an excuse (zbog) or a motivation (radi)?'
发音
Short falling accent
Both 'radi' and 'zbog' have a short falling accent on the first syllable.
Voicing
The 'z' in 'zbog' is voiced, but before a voiceless consonant in the next word, it might slightly de-voice.
Emphasis on the noun
Zbog KIŠE kasnim.
Emphasizes that the rain (not something else) is the reason.
记住它
记忆技巧
ZBOG is for the BACK (past cause), RADI is for the READY (future goal).
视觉联想
Imagine ZBOG as a heavy backpack pulling you backward (the cause) and RADI as a carrot on a stick in front of you (the goal).
Rhyme
Zbog je uzrok, to već znaš, radi cilja sve nam daš!
Story
Marko kasni ZBOG gužve (the traffic stopped him). On ide na sastanak RADI ugovora (the contract is his goal).
Word Web
挑战
Write three things you did today 'zbog' (because of something) and three things you did 'radi' (to achieve something).
文化笔记
In the standard language, the distinction between 'radi' and 'zbog' is strictly enforced in schools and media.
In coastal regions, 'zbog' is often used for everything, and 'radi' might sound overly formal.
Croatian administration loves the word 'radi'. You will see it on every official form.
Both prepositions have Proto-Slavic roots. 'Radi' is related to the word 'rad' (work/joy) in some Slavic contexts, implying a directed effort.
对话开场白
Zašto učiš hrvatski jezik?
Jesi li ikada zakasnio na važan sastanak?
Što radiš radi svog zdravlja?
Zbog čega se ljudi najviše svađaju?
日记主题
常见错误
Test Yourself
Ne vidim ništa ___ magle.
Učim radi ispit___.
Find and fix the mistake:
Kasnim radi kiša.
Match each item on the left with its pair on the right:
zbog / kasnim / prometa
Idem u ljekarnu ___ lijeka.
Sretan sam zbog ___ (you).
Prepositions 'radi' and 'zbog' take the Dative case.
Score: /8
练习题
8 exercisesNe vidim ništa ___ magle.
Učim radi ispit___.
Find and fix the mistake:
Kasnim radi kiša.
1. Zbog 2. Radi
zbog / kasnim / prometa
Idem u ljekarnu ___ lijeka.
Sretan sam zbog ___ (you).
Prepositions 'radi' and 'zbog' take the Dative case.
Score: /8
常见问题 (8)
In casual speech, yes, many people do. But in exams or formal writing, you will lose points if you use 'zbog' for a goal.
'Za' is for a recipient (for me) or a destination. 'Radi' is for a purpose or sake (for the sake of peace).
Yes! Everything in the noun phrase after 'zbog/radi' must be in the Genitive. E.g., 'zbog LOŠEG VREMENA'.
You can use 'Zašto?', but 'Radi čega?' is more specific for goals.
No, 'radi' is a preposition and needs a noun. To use a verb, you need 'da bi' or 'kako bi'.
Because 'zbog' requires the Genitive case, and 'mene' is the Genitive form of 'ja'.
Technically no, but in some dialects, it is used that way. Stick to 'zbog' for 'because of'.
Not always! You can say 'Sretan sam zbog tebe' (I'm happy because of you), which is positive.
Scaffolded Practice
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2
3
4
Mastery Progress
Needs Practice
Improving
Strong
Mastered
In Other Languages
because of / for the sake of
English 'for' is split into 'za' (recipient) and 'radi' (purpose).
wegen / um...zu
Both languages use the Genitive case for these prepositions.
por / para
Spanish uses 'para' for recipients too, while Croatian uses 'za'.
à cause de / pour
French doesn't distinguish between 'for a goal' and 'for a person'.
no tame ni / kara
Japanese uses particles after the noun, Croatian uses prepositions before.
yīnwèi / wèile
Chinese 'yīnwèi' is often a conjunction, while 'zbog' is a preposition.
