On radi tamo.

Often, on can be dropped.

Serbian verbs usually show the person clearly, so Radi tamo. is a perfectly natural sentence and still means He works there / He is working there.

You keep on when:

• you want to emphasize he
• you want to contrast him with someone else
• you need to make the subject especially clear

For example:

• Radi tamo. = He works there.
• On radi tamo. = He works there / He works there.

Radi is the 3rd person singular present tense of the verb raditi.

So the verb pattern is:

• ja radim = I work
• ti radiš = you work
• on/ona/ono radi = he/she/it works

In this sentence, on radi matches he works.

Yes. Serbian does not have a separate tense like English is working for most everyday situations.

So On radi tamo. can mean:

• He works there (general fact, job, habit)
• He is working there (current situation)

The exact meaning depends on context.

Because Serbian does not build the present tense the same way English does.

In English, you often need:

• He works
• He is working

In Serbian, the single form radi can cover both ideas, depending on context. So no extra word like English is is needed here.

Tamo means there, usually referring to a place farther away from the speaker.

Serbian commonly distinguishes:

• ovde = here
• tu = there / here near you / nearby
• tamo = there, over there, farther away

So tamo is a location word, and it is an adverb, not a noun and not a case form.

Yes. Serbian word order is more flexible than English word order.

All of these can work, depending on emphasis:

• On radi tamo.
• On tamo radi.
• Radi tamo.
• Tamo radi.

The most neutral version here is On radi tamo., but changing the order can shift the focus:

• On radi tamo. = neutral
• On tamo radi. = slight emphasis on there
• Tamo radi. = He works there / He is working there, with more focus on location

No. Tamo is an adverb, so it does not change for case.

This is useful because English speakers often expect location words to behave like nouns with prepositions. But here tamo simply means there and stays the same.

Yes. The verb raditi has a broader meaning than English to work in some contexts.

It can mean things like:

• to work (have a job / be employed)
• to function (for a machine or device)
• sometimes to do in certain expressions

But in On radi tamo., the most natural meaning is He works there or He is working there.

A simple English-friendly guide is:

• on ≈ ohn
• radi ≈ RAH-dee
• tamo ≈ TAH-moh

A few pronunciation notes:

• r in Serbian is usually a trilled or tapped r
• vowels are generally clear and steady
• stress can vary, but for a beginner, RAH-dee and TAH-moh is a good practical approximation

Very often, yes.

Without extra context, On radi tamo. most naturally suggests:

• He works there = that is where he is employed

But in the right context it could also mean:

• He is working there right now
• He does work there in a more temporary sense

Context tells you whether it is a job, a temporary activity, or simply something happening now.