Zaboraviti ("to forget") is the everyday verb behind Zaboravio sam ključeve ("I forgot my keys"), Nemoj zaboraviti! ("Don't forget!"), and the dismissive Zaboravi! ("Forget it!"). Unlike the verbs of believing and understanding, its government is gentle — mostly a plain accusative — so the work here is the aspect pair (perfective zaboraviti vs imperfective zaboravljati, with a v → vlj jotation in the imperfective) and the optional na + accusative for "forget about". This page lays out both members of the pair and the line between zaboraviti and its opposite, sjećati se ("remember").
Aspect
This is a true aspect pair from one root:
- zaboraviti — perfective: to forget (once, completed). "I forgot." The default for a single act of forgetting.
- zaboravljati — imperfective: to be forgetting, to keep forgetting (a process or habit). "I keep forgetting."
The imperfective is built by the -ja- suffix, which triggers jotation: the v of zaborav- becomes vlj before the -ja-, giving zaboravlj-ati. This same v → vlj change shows up in the passive participle (zaboravljen). See aspect pairs by suffix and palatalization.
Present tense
Because zaboraviti is perfective, its present does not mean "I forget now" — it has future/subordinate value (after kad, ako, da). The genuinely "present-now" meaning belongs to the imperfective zaboravljati. Both are shown below.
zaboraviti (perfective) — i-class, stem zaborav-:
| Person | zaboraviti (pf) | zaboravljati (impf) |
|---|---|---|
| ja | zaboravim | zaboravljam |
| ti | zaboraviš | zaboravljaš |
| on/ona/ono | zaboravi | zaboravlja |
| mi | zaboravimo | zaboravljamo |
| vi | zaboravite | zaboravljate |
| oni/one/ona | zaborave | zaboravljaju |
Stalno zaboravljam gdje sam ostavila naočale.
I keep forgetting where I left my glasses. — imperfective, habitual, feminine speaker.
Ako zaboraviš lozinku, javi mi.
If you forget the password, let me know. — perfective present after 'ako', future value.
The l-participle
Built on the infinitive stems.
| Gender / number | zaboraviti | zaboravljati |
|---|---|---|
| masculine singular | zaboravio | zaboravljao |
| feminine singular | zaboravila | zaboravljala |
| neuter singular | zaboravilo | zaboravljalo |
| masculine plural | zaboravili | zaboravljali |
| feminine plural | zaboravile | zaboravljale |
| neuter plural | zaboravila | zaboravljala |
Perfect tense (perfekt)
By far the most common past form is the perfective zaboravio/zaboravila sam — a single completed act of forgetting. Clitic biti + l-participle.
| Person | Masculine subject | Feminine subject |
|---|---|---|
| ja | zaboravio sam | zaboravila sam |
| ti | zaboravio si | zaboravila si |
| on / ona | zaboravio je | zaboravila je |
| mi | zaboravili smo | zaboravile smo |
| vi | zaboravili ste | zaboravile ste |
| oni / one | zaboravili su | zaboravile su |
Opet sam zaboravio kišobran u tramvaju.
I left my umbrella on the tram again. — masculine, perfective, accusative 'kišobran'.
Zaboravila sam ti reći da je zvao Marko.
I forgot to tell you that Marko called. — feminine, perfective + infinitive 'reći'.
Future I (futur prvi)
The infinitive zaboraviti drops its -i: zaboravit ću.
| Person | Form |
|---|---|
| ja | zaboravit ću |
| ti | zaboravit ćeš |
| on/ona/ono | zaboravit će |
| mi | zaboravit ćemo |
| vi | zaboravit ćete |
| oni/one/ona | zaboravit će |
Nikad neću zaboraviti taj dan.
I'll never forget that day. — negated future 'neću zaboraviti'.
Imperative
The perfective imperative zaboravi is the everyday one; the negative nemoj zaboraviti ("don't forget") uses the perfective infinitive after nemoj.
| Person | zaboraviti | zaboravljati |
|---|---|---|
| ti | zaboravi | zaboravljaj |
| mi | zaboravimo | zaboravljajmo |
| vi | zaboravite | zaboravljajte |
The most useful phrase of all is the standalone Zaboravi! ("Forget it! / Never mind! / Drop it!").
Zaboravi, nije ni bilo važno.
Forget it, it wasn't important anyway.
Nemoj zaboraviti mlijeko na povratku.
Don't forget the milk on your way back. — 'nemoj' + perfective infinitive.
Other forms
- Passive participle: zaboravljen ("forgotten"), with the v → vlj jotation — zaboravljen grad ("a forgotten town"), davno zaboravljena pjesma ("a long-forgotten song"). This is a high-frequency adjective.
- Verbal adverb (imperfective): zaboravljajući ("forgetting, while forgetting"), mostly literary.
To je već davno zaboravljena priča.
That's a long-forgotten story now. — passive participle 'zaboravljena'.
Key uses and government
1. zaboraviti + ACCUSATIVE — "forget something"
The default: the thing forgotten goes in the accusative, just like English. See the accusative direct object.
Zaboravio sam tvoj broj.
I forgot your number. — accusative 'tvoj broj'.
2. zaboraviti na + ACCUSATIVE — "forget about / let slip from mind"
With na + accusative, the sense shifts to "forget about, lose track of, fail to keep in mind" — often something you were supposed to attend to. The plain accusative loses information from memory; na + accusative loses it from your attention.
Potpuno sam zaboravio na sastanak.
I completely forgot about the meeting. — 'na' + accusative.
Nemoj zaboraviti na obećanje.
Don't forget about your promise.
3. zaboraviti + infinitive / da-clause
To forget to do something, use the perfective + an infinitive (or a da-clause). See da vs the infinitive.
Zaboravila sam zaključati vrata.
I forgot to lock the door. — infinitive 'zaključati'.
Zaboravio je da smo se dogovorili za danas.
He forgot that we'd arranged for today. — da-clause.
4. zaboraviti vs sjećati se ("remember")
The natural opposite of forgetting is sjećati se ("to remember"), which — unlike zaboraviti — is reflexive and takes the genitive, not the accusative: sjećam se tebe ("I remember you"). Don't carry the accusative of zaboraviti over to sjećati se. See sjećati se.
Sjećam se njega, ali sam zaboravio kako se zove.
I remember him, but I've forgotten his name. — 'sjećam se' + genitive 'njega' vs 'zaboravio' + accusative.
Common Mistakes
❌ Zaboravljam ključeve jučer.
Aspect/tense clash — a single past act of forgetting is the perfective perfekt 'zaboravio sam'.
✅ Zaboravio sam ključeve.
I forgot my keys.
❌ Zaboravljujem... zaboravljem stalno gdje su.
Wrong imperfective stem — the present is 'zaboravljam' (a-class), with -lj-.
✅ Stalno zaboravljam gdje su.
I keep forgetting where they are.
❌ Zaboravljen... zaboraven grad.
The passive participle has the jotation: 'zaboravljen', not 'zaboraven'.
✅ Davno zaboravljen grad.
A long-forgotten town.
❌ Zaboravio sam o sastanku.
Wrong preposition — 'forget about' is 'na' + accusative, not 'o'.
✅ Zaboravio sam na sastanak.
I forgot about the meeting.
❌ Zaboravljam te.
If you mean the opposite — 'remember' — that's reflexive + genitive, a different verb.
✅ Sjećam te se.
I remember you. — 'sjećati se' + genitive 'te'.
Key Takeaways
- A genuine aspect pair: perfective zaboraviti ("forget — done"), imperfective zaboravljati ("keep forgetting"), the imperfective showing v → vlj jotation.
- Use the perfective perfekt zaboravio/zaboravila sam for a single past act; the imperfective for habits ("I keep forgetting").
- Government: plain accusative for the thing forgotten; na
- accusative
- Passive participle zaboravljen ("forgotten") and the standalone Zaboravi! ("Forget it!") are everyday forms.
- The opposite, sjećati se ("remember"), is reflexive and takes the genitive — don't copy this verb's accusative onto it.
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Start learning Croatian→Related Topics
- Forming Aspect Pairs: Suffixation and Secondary ImperfectivesB2 — Building imperfectives from perfectives with -ava-/-iva-/-ja-.
- Accusative: The Direct ObjectA1 — The accusative as the default object of transitive verbs.
- Consonant Alternations in DeclensionB1 — k/g/h -> c/z/s and other softenings triggered by case endings.
- sjećati se / sjetiti se (to remember)B1 — Reflexive memory verb that governs the genitive; contrasted with pamtiti.
- da + present vs the InfinitiveB1 — When to use the infinitive and when to use a da + present clause after modal and volition verbs — the same-subject choice, the different-subject rule, and the register split.
- Verbs with Fixed PrepositionsB1 — Verb + preposition combinations and their cases.