Učiniću ovo danas.

In Serbian, the subject pronoun is often omitted because the verb ending already shows who is doing the action.

Here, učiniću means I will do / I will accomplish, so I is already built in.

You can add ja if you want emphasis:

Ja ću ovo učiniti danas. = I will do this today.

Without ja, the sentence sounds more neutral and natural.

Učiniću is the future tense, first person singular.

It comes from:

• učiniti = to do, to accomplish
• ću = shortened form of hoću used to build the future

So the idea is:

učiniti + ću → učiniću

With many verbs ending in -ti, Serbian writes this future form as one word when the verb comes before ću.

Compare:

• Učiniću = I will do
• Učinićeš = you will do
• Učiniće = he/she/it will do

Serbian has two common ways to express this future:

• Učiniću ovo danas.
• Ja ću učiniti ovo danas.

Both are correct.

The difference is mostly in structure and style:

• učiniću is the attached form
• ću učiniti is the separate form, often used when another word comes first, especially the subject or some other emphasized element

For example:

• Učiniću ovo danas. = neutral
• Ja ću ovo učiniti danas. = emphasis on I
• Danas ću ovo učiniti. = emphasis on today

Not exactly.

učiniti usually means to do, to accomplish, to carry out, to make happen. It often sounds a little more formal, abstract, or deliberate than everyday raditi.

Very roughly:

• raditi = to work, to do, to be doing
• uraditi = to do, to complete
• učiniti = to do, to accomplish, to perform

In many everyday situations, učiniti and uraditi can both work:

• Učiniću ovo danas.
• Uradiću ovo danas.

The second one may sound a bit more colloquial in ordinary speech.

Yes, both are possible, but they mean different things.

• ovo = this
• to = that

So:

• Učiniću ovo danas. = I’ll do this today.
• Učiniću to danas. = I’ll do that today.

Use ovo for something closer to the speaker, more immediate, or more present in the situation. Use to for something more distant or already established in the conversation.

Učiniti is a perfective verb.

That means the action is seen as a single whole or as something that will be completed.

So Učiniću ovo danas suggests:

• I will get this done today
• the action will be completed today

This is different from an imperfective idea like I’ll be doing this or I do this regularly.

Perfective verbs are very common in Serbian future tense when you mean a completed action.

Yes, Serbian word order is quite flexible.

Učiniću ovo danas is a very natural, neutral order.

But you can move things around for emphasis:

• Danas ću ovo učiniti. = emphasis on today
• Ovo ću učiniti danas. = emphasis on this
• Ja ću ovo učiniti danas. = emphasis on I

So the end position for danas is not required; it is just the most neutral placement here.

A rough pronunciation is:

u-CHI-ni-ću

The important part is the difference between č and ć:

• č = a harder ch sound
• ć = a softer sound, something like a very soft ty/ch sound

So in učiniću:

• the č in uči- is the harder one
• the ć in -ću is softer

English does not have a perfect equivalent for ć, so learners usually need practice hearing and repeating it.

Yes, absolutely.

That version is fully correct and very natural.

The main difference is emphasis:

• Učiniću ovo danas. = neutral, compact
• Ja ću ovo učiniti danas. = emphasizes I
• Ja ću to učiniti danas. = also very natural, depending on context

So the original sentence is not the only correct form; it is just one common way to say it.