Posle krađe bismo odmah blokirali kreditnu karticu.

Because posle requires the genitive case.

The base form of the noun is krađa (theft), but after posle (after), it changes to the genitive singular:

• nominative: krađa
• genitive: krađe

So:

• posle krađe = after the theft / after a theft

This is a very common pattern in Serbian:

• posle ručka = after lunch
• posle sastanka = after the meeting
• posle škole = after school

Bismo is the auxiliary used to form the conditional in Serbian, roughly like English would.

In this sentence:

• bismo blokirali = we would block

The Serbian conditional is usually built with:

• a form of biti in the conditional (bih, bi, bismo, biste, bi)
• plus the past participle of the main verb

So:

• ja bih blokirao/blokirala = I would block
• mi bismo blokirali = we would block

This often expresses:

• a hypothetical action
• something that would happen under certain circumstances
• a polite or less direct statement

Blokirali is the past participle used with bismo to make the conditional.

So the structure is:

• bismo
  • blokirali
• literally: would + blocked
• naturally in English: would block

The ending -li shows plural masculine/mixed agreement. With mi (we), this is the usual default form if the group is mixed or unspecified.

Compare:

• mi bismo blokirali = we would block (mixed group / general)
• mi bismo blokirale = we would block (all-female group)

Because it is the direct object of the verb, so it appears in the accusative case.

The dictionary form is:

• kreditna kartica = credit card

In the accusative singular, feminine adjectives and nouns change:

• kreditna → kreditnu
• kartica → karticu

So:

• blokirati kreditnu karticu = to block a credit card / the credit card

This is a very common accusative pattern for feminine nouns ending in -a:

• dobra knjiga → dobru knjigu
• nova torba → novu torbu

No. Serbian has no articles, so there is no direct equivalent of English the or a/an.

That means:

• posle krađe can mean after the theft or after a theft
• kreditnu karticu can mean the credit card or a credit card

The exact meaning depends on context.

This is something English speakers often need time to get used to: Serbian usually leaves definiteness unstated unless the context makes it clear.

No. You could also use nakon, which is a bit more formal or neutral in style.

So both are possible:

• Posle krađe bismo odmah blokirali kreditnu karticu.
• Nakon krađe bismo odmah blokirali kreditnu karticu.

Both mean essentially the same thing.

In everyday speech, posle is extremely common.

Odmah means immediately / right away.

Here it comes before the main verb phrase:

• bismo odmah blokirali

This is a very natural placement and emphasizes that the blocking would happen quickly.

Serbian word order is fairly flexible, so you may also hear variations like:

• Posle krađe odmah bismo blokirali kreditnu karticu.
• Odmah bismo posle krađe blokirali kreditnu karticu.

But the original sentence sounds natural and neutral.

It sounds conditional or hypothetical, not like a straightforward future statement.

Because of bismo, the sentence means something like:

• After a theft, we would immediately block the credit card.
• If that happened, we would immediately block the credit card.

If you wanted a simple future meaning, Serbian would normally use the future tense instead, for example:

• Posle krađe ćemo odmah blokirati kreditnu karticu. = After the theft, we will immediately block the credit card.

So bismo is the key signal that this is conditional rather than plain future.

Not exactly.

Krađa is specifically theft—the act of stealing.

English speakers sometimes confuse:

• theft = stealing
• robbery = stealing by force or threat, usually from a person or place

In Serbian:

• krađa = theft
• pljačka = robbery / robbery-like armed theft / raid, depending on context

So posle krađe is specifically after the theft.

Possibly, depending on context, but the most direct meaning of blokirati kreditnu karticu is to block the credit card.

In banking English, people often say:

• block the card
• freeze the card
• cancel the card

These are related but not always identical in meaning.

Serbian blokirati karticu most naturally corresponds to block the card. In some real-life banking contexts, English might prefer freeze or cancel, but grammatically the Serbian verb here is simply block.

You can definitely reuse the pattern. It is very productive.

The sentence shows several useful building blocks:

• posle + genitive = after ...
• bismo + participle = would ...
• odmah = immediately
• [verb] + accusative object

So you can make many similar sentences:

• Posle nesreće bismo odmah pozvali policiju. = After the accident, we would immediately call the police.

• Posle problema bismo brzo reagovali. = After the problem, we would react quickly.

• Posle gubitka kartice bismo je blokirali. = After losing the card, we would block it.

So it is much better to learn the pattern, not just memorize the sentence word for word.