Uselićemo se sutra.

It is the future tense: we will move in.

More specifically, this is Serbian Future I. It is formed here from:

• useliti = to move in
• ćemo = we will

With many verbs ending in -ti, Serbian can attach the future auxiliary to the verb stem:

• useliti → uselićemo
• raditi → radićemo

So uselićemo se literally corresponds to we will move in.

Se is the reflexive particle. In useliti se, it is a normal part of the verb expression.

So you learn this verb as:

• useliti se = to move in

In English, se is often not translated directly. It does not usually mean ourselves here in a literal sense. It simply belongs to the verb.

Compare:

• useliti se = to move in
• smestiti se = to get settled
• preseliti se = to move/relocate

So in this sentence, se is required.

Because Serbian often drops subject pronouns when they are already clear from the verb ending.

Here, -ćemo already tells you the subject is we.

So:

• Uselićemo se sutra. = We will move in tomorrow.
• Mi ćemo se useliti sutra. = also correct, but mi adds emphasis, contrast, or clarity.

A Serbian speaker usually does not need to say mi unless they want to stress we.

Because sutra is a time adverb meaning tomorrow, and Serbian commonly uses time adverbs without prepositions.

Just like:

• danas = today
• sutra = tomorrow
• juče = yesterday

So:

• Uselićemo se sutra. = We’ll move in tomorrow.

You do not need a word like on or in before sutra.

Yes. That is also correct.

Both patterns are normal:

• Uselićemo se sutra.
• Mi ćemo se useliti sutra.
• Sutra ćemo se useliti.

These all mean basically the same thing, but they differ slightly in style and emphasis.

A few notes:

• Uselićemo se is a compact future form.
• Ćemo se useliti uses the auxiliary separately.
• Mi is optional and adds emphasis.
• Putting sutra first emphasizes tomorrow.

So the choice is often about focus and rhythm, not a big change in meaning.

The verb in this sentence is useliti se.

This is related to seliti se, but the prefix changes the meaning:

• seliti se = to move, to be moving house, to relocate in a general sense
• preseliti se = to relocate / move to another place
• useliti se = to move in to a new home, apartment, office, etc.

The prefix u- often gives the idea of into something. So useliti se is specifically about going into the new place.

Because useliti se is more specific and usually more natural for move in.

• seliti se is broader: to move / to be relocating
• useliti se focuses on the act of entering and settling into the new place

So if the meaning shown to the learner is We will move in tomorrow, then useliti se is the right choice.

It also suggests a completed future action: tomorrow, the moving-in will happen.

Yes, it matters.

Useliti se is a perfective verb. That means it presents the action as a whole, completed event.

That fits very well here:

• Uselićemo se sutra. = We will move in tomorrow.

The sentence refers to one future event that will be completed.

By contrast, an imperfective verb would usually focus more on the process, repetition, or ongoing nature of the action.

This is one reason Serbian often uses a perfective verb for a sentence like this.

It comes from the infinitive useliti plus the future auxiliary.

For verbs like this, Serbian usually:

1. removes -ti
2. adds the future ending

So:

• useliti → useli-
• useli- + ćemo → uselićemo

Other examples:

• raditi → radićemo
• kupiti → kupićemo

So uselićemo is a standard future form.

In Serbian, se is a clitic, so its position follows clitic-placement rules.

In this sentence:

• Uselićemo se sutra.

That is completely normal.

If you use the split future form, you also get:

• Mi ćemo se useliti sutra.
• Sutra ćemo se useliti.

Notice that se stays close to the verbal part and follows normal clitic placement.

So you should usually learn the whole pattern, not just the single word se by itself.

Ć is pronounced as a soft sound, somewhat like a very soft ch/t sound.

It is not the same as č.

Very roughly:

• ć = softer
• č = harder, stronger ch

So uselićemo sounds approximately like:

• oo-seh-LEE-cheh-mo, but with a softer sound than English ch

The stress and exact pronunciation vary by dialect, but the main thing for learners is to keep ć softer than č.