Traka za trčanje je nova sprava.

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

So Traka za trčanje je nova sprava can be understood from context as something like:

• The treadmill is a new machine/device
• or A treadmill is a new machine/device

In real use, context tells you whether the noun is definite or indefinite.

Za trčanje is a phrase meaning for running.

Here, za often expresses purpose or function. So:

• traka = belt / track / band
• za trčanje = for running

Together, traka za trčanje is the standard Serbian expression for treadmill.

After za in this meaning, Serbian normally uses the accusative.

The noun trčanje is a verbal noun meaning running. It is neuter, and in neuter singular, the nominative and accusative often look the same.

So even though the form is trčanje, here it is functioning as accusative after za.

Not here. Trčanje is a noun, not a finite verb.

It comes from the verb trčati = to run, and it means running.

This is very common in Serbian: a verb can produce a noun in -nje or -anje:

• čitati = to read

• čitanje = reading

• trčati = to run
• trčanje = running

Je is the 3rd person singular present tense of biti = to be.

So:

• je = is

In standard Serbian, you normally keep this verb in sentences like this. Unlike in some other Slavic languages, the present-tense to be is not usually omitted in normal standard Serbian.

That is the normal position here.

Serbian word order is more flexible than English, but je often appears early in the sentence, and Traka za trčanje je nova sprava is a very natural neutral order:

• subject: Traka za trčanje
• verb: je
• predicate noun phrase: nova sprava

You can change word order for emphasis, but this version is the most straightforward one.

Because sprava is a feminine singular noun, and adjectives must agree with the noun they modify.

So:

• masculine: novi
• feminine: nova
• neuter: novo

Since sprava is feminine, the adjective must be nova.

They are:

• traka — feminine
• trčanje — neuter
• sprava — feminine

That is why:

• nova sprava uses the feminine adjective nova

Also, traka is feminine too, which is useful to remember when you later decline it.

Because this is a sentence with to be:

• Traka za trčanje = subject
• je nova sprava = predicate

In Serbian, after biti (to be), the predicate noun is very often in the nominative too.

So both:

• traka
• sprava

are nominative singular here.

Yes, it is the normal Serbian word for treadmill.

Literally, it is something like a belt/track for running, but you should learn it as a whole expression.

On its own, traka can mean things like:

• tape
• ribbon
• strip
• belt
• lane

So by itself, traka does not automatically mean treadmill unless the context makes that clear.

Yes, Serbian allows some flexibility.

For example:

• Traka za trčanje je nova sprava. — neutral
• Nova sprava je traka za trčanje. — puts more focus on new device
• Traka za trčanje nova je sprava. — possible, but more marked or literary

For learners, the original order is the safest and most natural.

A rough English-friendly guide is:

• trčanje ≈ tr-CHA-nye

A few important sounds:

• č sounds roughly like ch in church
• nj sounds like ny in canyon

So the end -nje is not pronounced like English nee, but more like nye.

Yes, but that means something different.

• Traka za trčanje je nova. = The treadmill is new.
• Traka za trčanje je nova sprava. = The treadmill is a new device/machine.

So in your original sentence, nova describes sprava, not just the treadmill by itself.

Sprava is a fairly general word meaning something like:

• device
• apparatus
• piece of equipment
• machine

The best English translation depends on context.

In everyday Serbian, especially in fitness or sports contexts, sprava is very common for exercise equipment. So nova sprava can sound like a new piece of equipment or a new machine/device.