razumjeti (to understand) | Croatian Grammar

Razumjeti ("to understand") is one of the first verbs every learner needs — for Razumiješ li? ("Do you understand?"), Ne razumijem ("I don't understand"), and Razumijem te ("I understand you"). Its meaning is easy; its present tense is not. The stem carries the diphthong-like sequence -ije- (razumijem), and the infinitive's -mje- becomes -mije- in a way that English speakers consistently get wrong. This page nails down that razumijem present, the full paradigm, and the line between razumjeti ("understand") and shvatiti ("grasp, realise").

Aspect

Razumjeti is best treated as bi-aspectual but is overwhelmingly used imperfectively — understanding is a state, so Razumijem normally means "I (currently) understand." When you need the punctual sense of grasping or realising something at a moment, Croatian reaches for a separate verb, the perfective shvatiti ("to grasp, to realise"). So the practical pair learners use is razumjeti (state) ↔ shvatiti (realisation), even though they are not a formal aspect pair from the same root. See bi-aspectual verbs.

Present tense — the razumijem trap

This is the heart of the page. The infinitive is razum-*je-ti, but the present stem lengthens that *je to ije: razumijem. It is an e-class verb. Every person except the 3rd plural keeps -ije-; the 3pl is razumiju (with plain -i-, not -ije-).

Person	Form	Meaning
ja	razumijem	I understand
ti	razumiješ	you understand
on/ona/ono	razumije	he/she/it understands
mi	razumijemo	we understand
vi	razumijete	you understand
oni/one/ona	razumiju	they understand

Ne razumijem što hoćeš reći.

I don't understand what you mean. — 1sg 'razumijem'.

Razumiješ li me sad?

Do you understand me now? — accusative 'me'.

Djeca to još ne razumiju.

The children don't understand that yet. — 3pl 'razumiju' with plain -i-.

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Memorise the shape razumijem — five of the six forms have -ije- (razumijem, razumiješ, razumije, razumijemo, razumijete) and only the 3rd plural drops to -i- (razumiju). The single most common learner error is writing razumim — that form does not exist.

The l-participle

Watch the alternation here: the masculine singular is razumio (the -je- collapses to -i- before the vocalised -o), but the feminine and the rest restore -je-: razumjela, razumjeli.

Gender / number	Form
masculine singular	razumio
feminine singular	razumjela
neuter singular	razumjelo
masculine plural	razumjeli
feminine plural	razumjele
neuter plural	razumjela

So there are three vowel shapes for one verb: present razum*ije-, infinitive/feminine participle razum**je-, masculine participle *razumio. This is irregular and simply has to be learned.

Perfect tense (perfekt)

Clitic biti + l-participle agreeing with the subject.

Person	Masculine subject	Feminine subject
ja	razumio sam	razumjela sam
ti	razumio si	razumjela si
on / ona	razumio je	razumjela je
mi	razumjeli smo	razumjele smo
vi	razumjeli ste	razumjele ste
oni / one	razumjeli su	razumjele su

Nisam dobro razumio pitanje, možete li ponoviti?

I didn't quite understand the question, can you repeat it? — masculine 'razumio'.

Odmah sam te razumjela.

I understood you straight away. — feminine 'razumjela' + accusative 'te'.

Future I (futur prvi)

The infinitive razumjeti drops its final -i: razumjet ću.

Person	Form
ja	razumjet ću
ti	razumjet ćeš
on/ona/ono	razumjet će
mi	razumjet ćemo
vi	razumjet ćete
oni/one/ona	razumjet će

Jednog dana ćeš me razumjeti.

One day you'll understand me. — clitic-first order.

Imperative

The imperative is razumij (built from the present stem with -j), but it is uncommon — you rarely order someone to understand. Far more frequent in this slot is the fixed phrase Razumij me ("understand me / get where I'm coming from") or the perfective Shvati! ("Get it! / Wake up to it!").

Person	Form
ti	razumij
mi	razumijmo
vi	razumijte

Razumij me, nisam to mislila ozbiljno.

Understand me — I didn't mean it seriously. — feminine speaker.

Other forms

Passive participle: razumljiv ("understandable, comprehensible") is the living adjective — razumljiv tekst ("a clear text") — and nerazumljiv ("incomprehensible"). The neuter razumljivo doubles as "understandably, of course".
Verbal noun: razumijevanje ("understanding, comprehension") — uzajamno razumijevanje ("mutual understanding").

Hvala na razumijevanju.

Thank you for your understanding. — fixed phrase with the verbal noun.

Sasvim razumljivo, nemoj se ispričavati.

Totally understandable, don't apologise.

Key uses and government

1. razumjeti + ACCUSATIVE

The thing or person understood goes in the accusative — exactly like the English direct object, so this part is easy: razumjeti pitanje ("understand the question"), razumjeti te ("understand you"). See the accusative direct object.

Razumijem tvoj problem, ali ne mogu ti pomoći.

I understand your problem, but I can't help you. — accusative 'tvoj problem'.

2. razumjeti da — "understand that"

For a whole clause, use a da-clause, indicative.

Razumijem da si umoran, ali ovo se mora završiti danas.

I understand you're tired, but this has to be finished today.

3. razumjeti se u + accusative — "to be good at / know about"

A useful idiom: razumjeti se u + accusative means "to be knowledgeable about, to be good at" something — literally "to understand oneself into" a field.

On se baš razumije u vina.

He really knows his wines. — reflexive 'se' + 'u' + accusative.

4. razumjeti vs shvatiti

This is the contrast to internalise. Razumjeti is the durable state of comprehension ("I understand French", "I understand you"). Shvatiti (perfective) is the moment of grasping or realising — the penny dropping. English "I understand" can be either, so choose by whether you mean an ongoing state or a sudden realisation.

Dugo nisam shvaćao zašto je otišla, a sad razumijem.

For a long time I didn't grasp why she left, but now I understand. — 'shvatiti' = the dawning realisation, 'razumjeti' = the resulting state.

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Razumjeti = the state of understanding (it lasts). Shvatiti = the event of catching on (it happens at a point). "Now I get it!" said the moment it clicks is Sad sam shvatio!, not Sad razumijem — though both are possible, the perfective captures the click.

Common Mistakes

❌ Ne razumim te.

Incorrect — the present has -ije-: 'razumijem', and there is no form 'razumim'.

✅ Ne razumijem te.

I don't understand you.

❌ Oni ne razumiju... razumijeju.

Incorrect — the 3rd plural is 'razumiju' with plain -i-, not '-ije-'.

✅ Oni to ne razumiju.

They don't understand that.

❌ Razumjela sam... razumila sam.

Wrong participle — feminine keeps -je-: 'razumjela'; masculine collapses to 'razumio'.

✅ Razumjela sam te odmah.

I understood you right away. — feminine speaker.

❌ Razumijem o tom problemu.

Wrong government — 'razumjeti' takes the bare accusative, no 'o'.

✅ Razumijem taj problem.

I understand that problem.

❌ Konačno sam razumio! (said at the moment it clicks)

Aspect mismatch — the moment of catching on is the perfective 'shvatiti'.

✅ Konačno sam shvatio!

I finally get it! — the penny dropping.

Key Takeaways

Razumjeti is used mainly as a state ("understand"); for the moment of realisation use the perfective shvatiti.
Present has the -ije- stem: razumijem — razumiješ — razumije — razumijemo — razumijete — razumiju (only the 3pl drops to -i-). There is no razumim.
Participle alternates: masculine razumio, feminine razumjela.
Government: bare accusative for the thing understood; da-clause for a proposition; razumjeti se u
- accusative = "be good at".
razumljiv ("understandable"), razumijevanje ("understanding") and Hvala na razumijevanju are high-value derivatives.

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