Ne mogu da nađem debitnu karticu.

In Serbian, negation with verbs is usually formed with ne + verb, written as two words:

• mogu = I can
• ne mogu = I cannot / I can’t

So Ne mogu is the normal way to say I can’t.

A few very common forms are written together, such as nemam (I don’t have) and nisam (I am not), but ne mogu stays separate.

Serbian very often uses the pattern:

modal verb + da + present-tense verb

So after mogu (can), it is very natural to say:

• mogu da nađem
• literally something like I can that I find, but functionally it means I can find

This is one of the most common structures in modern Serbian. You may also see an infinitive in some contexts or styles, but mogu da nađem is extremely standard and natural.

Because after da, Serbian normally uses a finite verb form, not the infinitive.

• naći = infinitive, to find
• nađem = 1st person singular present-form of a perfective verb, I find / I manage to find

So:

• Ne mogu da nađem... = correct
• Ne mogu da naći... = not correct

If you want the dictionary form, it is naći. But in this sentence, the form needed is nađem.

This is about aspect, which is very important in Serbian.

• naći / nađem = perfective → finding something successfully, reaching the result
• nalaziti / nalazim = imperfective → finding in a general, repeated, or ongoing sense

In Ne mogu da nađem debitnu karticu, the idea is:

I can’t manage to find it / I can’t locate it

That is why the perfective verb naći is natural here.

Using nalazim would usually not fit this situation. It can sound more like a habitual meaning, such as I don’t usually find..., rather than I can’t find it right now.

Because the phrase is the direct object of the verb, so it goes into the accusative case.

The basic form is:

• debitna kartica = nominative

But after a verb like naći (to find), the thing being found is a direct object, so feminine singular nouns and their adjectives change:

• debitna kartica → debitnu karticu

So:

• Vidim debitnu karticu.
• Ne mogu da nađem debitnu karticu.

That is normal accusative marking for a feminine singular noun phrase.

You can recognize it from both the adjective and the noun ending:

• debitna → debitnu
• kartica → karticu

For many feminine singular nouns ending in -a, the accusative singular ends in -u:

• knjiga → knjigu
• torba → torbu
• kartica → karticu

And adjectives agreeing with them also change:

• nova kartica → novu karticu
• debitna kartica → debitnu karticu

So both words are showing the same case, gender, and number.

Serbian does not have articles like English a/an and the.

So debitnu karticu can mean:

• a debit card
• the debit card
• sometimes even my debit card, depending on context

The exact meaning is understood from the situation, previous conversation, or emphasis.

If you want to be more specific, Serbian can use other words, for example:

• tu debitnu karticu = that debit card
• moju debitnu karticu = my debit card

But in many everyday sentences, no article is needed.

Yes, Serbian word order is more flexible than English, because case endings show the grammatical roles.

The most neutral order here is:

• Ne mogu da nađem debitnu karticu.

But other orders are possible for emphasis, for example:

• Debitnu karticu ne mogu da nađem.
  Emphasizes the debit card
• Ne mogu debitnu karticu da nađem.
  Also possible, with a slightly different rhythm or emphasis

Even though these are possible, the original version is the safest and most natural one for a learner to use.

A rough pronunciation is:

NAH-jem, but with a softer sound in the middle.

The letter đ is pronounced somewhat like the j in duke in some English accents, or like a soft dj sound.

So nađem is approximately:

• NAH-ђem
• not a hard g
• not exactly English j, but close to a soft dj

Also:

• lj, nj, ć, č, š, ž, đ are important Serbian sounds to get used to

If it helps, compare:

• đ = softer
• dž = harder, like English j in jam

Because kartica is the normal word for a card such as:

• bank card
• ID card
• SIM card
• membership card

Meanwhile, karta more often means:

• ticket
• map
• playing card, in some contexts

So for debit card, the standard phrase is:

• debitna kartica

not debitna karta.

Yes. That is also correct and very natural.

• naći / nađem = to find
• pronaći / pronađem = to find, often a bit more explicit in the sense of locate / discover

In many everyday contexts, they are very close in meaning.

So both are fine:

• Ne mogu da nađem debitnu karticu.
• Ne mogu da pronađem debitnu karticu.

The first one is slightly simpler and very common in speech.

Usually, yes. Ne mogu da nađem debitnu karticu most naturally means something like:

I can’t find my/the debit card right now

It describes a current problem or situation. Even though nađem is a present-tense form, with a perfective verb it often expresses whether the action can be completed, not a repeated present activity.

So the sentence is not really about a general habit. It is about being unable to locate the card in the current situation.