Tarifni paket ima deset gigabajta.

In this context, tarifni paket means a mobile/phone plan or service plan offered by a telecom company.

Literally:

• tarifni = tariff/rate-plan related
• paket = package

So together, it is basically a tariff package or more naturally in English, a plan.

Tarifni is an adjective describing paket. In Croatian, adjectives must agree with the noun in:

• gender
• number
• case

Here, paket is:

• masculine
• singular
• nominative (because it is the subject)

So the adjective also appears in the masculine singular nominative form: tarifni.

It is in the nominative case because it is the subject of the sentence.

The sentence structure is:

• Tarifni paket = subject
• ima = verb
• deset gigabajta = object/quantity phrase

So tarifni paket is the thing that has something.

Ima is the 3rd person singular present tense of imati, which means to have.

The subject is tarifni paket, which is singular, so Croatian uses:

• imam = I have
• imaš = you have
• ima = he/she/it has

So Tarifni paket ima... = The plan has...

Croatian does not have articles like a, an, and the.

So:

• paket can mean a package, the package, or just package
• the exact meaning depends on context

In this sentence, English naturally uses the or leaves it implied depending on the context, but Croatian does not need a separate word for it.

After numbers, Croatian often changes the form of the noun.

With deset (ten), the noun goes in the genitive plural:

• gigabajt = gigabyte
• deset gigabajta = ten gigabytes

So gigabajta is the correct form after deset.

This is very common in Croatian:

• pet dana = five days
• deset eura = ten euros
• šest knjiga = six books

Here it is plural in meaning: ten gigabytes.

Grammatically, after deset, Croatian uses the genitive plural form. For this noun, that form is written gigabajta.

That can be confusing for English speakers because it does not look like a typical plural ending, but it is normal Croatian grammar after numbers.

Yes. Croatian word order is more flexible than English word order because cases show the grammatical roles.

The most neutral order here is:

• Tarifni paket ima deset gigabajta.

But other orders are possible for emphasis, for example:

• Deset gigabajta ima tarifni paket.

That sounds more marked or emphatic, not as neutral as the original sentence.

So for a learner, the original version is the best standard pattern to remember.

Yes. If the context is already clear, you can shorten it to:

• Paket ima deset gigabajta.

Adding tarifni makes it more specific and formal:

• paket = package/plan
• tarifni paket = tariff plan / service plan

In everyday speech, people often shorten expressions when the context is obvious.

Roughly like gee-ga-BYE-ta.

A few useful pronunciation points:

• g is always a hard g
• j is pronounced like English y
• aj sounds like English eye

So bajt sounds close to English byte.

A rough full-sentence pronunciation guide is: TA-reef-nee PA-ket EE-ma DE-set gee-ga-BYE-ta

That is only an approximation, but it is close enough for a learner to start with.