Trebala sam uplatiti sve odmah, ali nisam imala dovoljno novca na štednom računu.

Trebala sam is the feminine singular past form of trebati.

In this kind of sentence, trebati + infinitive often means:

• I should have ...
• I was supposed to ...
• I needed to ...

So Trebala sam uplatiti sve odmah means something like I should have paid/deposited everything immediately or I was supposed to pay everything immediately.

Because the second clause says ali nisam imala dovoljno novca..., the sentence clearly describes something that was expected or necessary, but did not happen.

Because trebala agrees with the speaker’s gender.

In Croatian past tense, the active past participle changes for gender:

• trebao sam = I should have / I needed to... (male speaker)
• trebala sam = I should have / I needed to... (female speaker)

So this sentence is said by a female speaker.

Croatian past tense is made with:

• the past participle: trebala
• the auxiliary to be: sam

So trebala sam is a normal past-tense pattern.

Croatian also has special word-order rules for short unstressed words like sam, which are called clitics. They usually come near the beginning of the clause, often after the first stressed element or phrase.

That is why Trebala sam uplatiti... sounds natural.

You may also see different word orders in other contexts, for example:

• Ja sam trebala uplatiti sve odmah.
• Sve sam trebala uplatiti odmah.

But in your sentence, trebala sam is completely standard.

Uplatiti is a perfective verb meaning to pay in, to deposit, or to make a payment.

It is often used for:

• making a payment into an account
• paying an installment
• transferring money
• paying a sum that needs to be formally credited somewhere

So it fits well with na štednom računu because the sentence is about available money in an account.

A useful contrast:

• uplatiti = complete the payment/deposit as one finished action
• uplaćivati = make such payments repeatedly or over time

Since the sentence refers to one specific action that should have been completed, the perfective uplatiti is the natural choice.

Here sve means everything or all of it.

It is the direct object of uplatiti, so it is in the accusative form. For sve, the form looks the same as nominative/accusative neuter singular, but functionally here it is the object:

• uplatiti sve = to pay/deposit everything

It refers to the whole amount or all required payments.

In Croatian, the negative form of sam is not made by simply putting ne in front of it. Instead, it becomes a single word:

• sam → nisam
• si → nisi
• je → nije
• smo → nismo
• ste → niste
• su → nisu

So:

• imala sam = I had
• nisam imala = I did not have

That is the normal past negative form.

Because dovoljno requires the genitive.

In Croatian, words like dovoljno, puno, malo, and nekoliko are commonly followed by a noun in the genitive:

• dovoljno vremena = enough time
• puno ljudi = a lot of people
• malo vode = a little water
• dovoljno novca = enough money

So:

• novac = nominative
• novca = genitive singular

That is why dovoljno novca is correct.

Na štednom računu means in/on the savings account, and it uses the locative case.

Two things are happening here:

1. na is the preposition used with some places or surfaces, but also with things like accounts, records, lists, and similar concepts.
2. After na when it means location, Croatian uses the locative.

So:

• štedni račun = savings account
• na štednom računu = in/on the savings account

The endings show locative singular masculine:

• štedni → štednom
• račun → računu

English says in the savings account, but Croatian naturally says na štednom računu.

Odmah means immediately, right away, or at once.

In this sentence it modifies uplatiti:

• uplatiti sve odmah = pay/deposit everything immediately

Croatian word order is flexible, so odmah can often move depending on emphasis:

• Trebala sam odmah uplatiti sve.
• Sve sam trebala odmah uplatiti.
• Odmah sam trebala uplatiti sve.

These versions are all possible, though the emphasis changes slightly.

Not by itself, always. On its own, trebala sam uplatiti can mean:

• I was supposed to pay
• I needed to pay
• I should have paid

Depending on context, it may or may not imply that the action was not completed.

But in this sentence, the second clause gives the reason:

• ali nisam imala dovoljno novca na štednom računu

That strongly suggests the payment was not made, because the speaker lacked enough money.

So in this full sentence, the natural interpretation is that the expected payment did not happen.

Yes. Croatian trebati often overlaps with several English ideas:

• should
• need to
• be supposed to

The best English choice depends on context.

Here are the main possibilities:

• I should have paid everything immediately...
• I was supposed to pay everything immediately...
• I needed to pay everything immediately...

Because the sentence sounds like an obligation that was not fulfilled due to lack of money, should have or was supposed to often fits best.

Yes. Croatian word order is much freer than English word order. The basic meaning can stay the same while the emphasis changes.

For example, these are all possible:

• Trebala sam uplatiti sve odmah, ali nisam imala dovoljno novca na štednom računu.
• Sve sam trebala uplatiti odmah, ali nisam imala dovoljno novca na štednom računu.
• Odmah sam trebala uplatiti sve, ali nisam imala dovoljno novca na štednom računu.

What changes is mostly the focus:

• sve first emphasizes everything
• odmah first emphasizes immediately

However, the placement of short words like sam and nisam still follows Croatian clitic rules, so not every rearrangement is equally natural.