Imam nekoliko pitanja.

• Imam = I have
• nekoliko = several / a few
• pitanja = questions

So the structure is very straightforward: I have + several + questions.

Imam is the 1st person singular present tense of the verb imati (to have).

A few present-tense forms of imati are:

• ja imam = I have
• ti imaš = you have
• on/ona/ono ima = he/she/it has
• mi imamo = we have
• vi imate = you plural/formal have
• oni/one/ona imaju = they have

In this sentence, imam already tells you the subject is I, so ja is not necessary.

In Serbian, subject pronouns are often omitted because the verb ending already shows who the subject is.

So:

• Imam nekoliko pitanja. = normal, natural
• Ja imam nekoliko pitanja. = also correct, but ja adds emphasis, something like I have several questions

You would use ja if you want contrast or emphasis:

• Ja imam nekoliko pitanja, a on nema nijedno.
  I have several questions, but he doesn’t have any.

Because the sentence refers to more than one question.

The basic singular noun is:

• pitanje = question

Its plural is:

• pitanja = questions

So after nekoliko (several / a few), you need the plural idea, and that gives you pitanja.

After nekoliko, Serbian normally uses the genitive plural.

So in nekoliko pitanja, pitanja is functioning as genitive plural.

This is important because English learners often expect a simple plural, but Serbian quantity words often affect the case of the noun.

Examples:

• mnogo pitanja = many questions
• nekoliko pitanja = several questions
• pet pitanja = five questions

A useful thing to know here is that for pitanje, the nominative plural and genitive plural happen to look the same: pitanja. So the form does not change, even though the grammar behind it does.

Nekoliko usually means a few or several. It suggests an indefinite small number, more than one, but not a large amount.

Depending on context, it can be translated as:

• a few
• several
• some

So Imam nekoliko pitanja could naturally mean:

• I have a few questions
• I have several questions

In many situations, several is a very good match.

This is a very useful distinction.

• Imam nekoliko pitanja. = I have several / a few questions.
  Focus: the number is indefinite but small.

• Imam neka pitanja. = I have some questions.
  Focus: the questions exist, but the number is not the main point.

So nekoliko is more clearly quantitative, while neka is looser and more like English some.

The most natural neutral order is:

• Imam nekoliko pitanja.

Serbian word order is fairly flexible, so other orders are possible, but they change emphasis.

For example:

• Nekoliko pitanja imam.
  This sounds more marked, as if emphasizing several questions
• Pitanja imam nekoliko.
  Also possible in special contexts, but less neutral

For a learner, the safest default is the original order:

• Imam nekoliko pitanja.

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

So where English says:

• I have a question
• I have the question
• I have some questions

Serbian expresses these meanings without articles, using context, word choice, or word order.

That is why Imam nekoliko pitanja has no separate word corresponding to a or the.

A simple English-friendly approximation is:

• pee-TAHN-ya

More precisely:

• pi as in peek but shorter
• ta
• nja with nj pronounced like the ny in canyon or onion

So pitanja is not pronounced with a hard English n + j sound. The nj is a single Serbian sound.

The whole sentence can be approximated as:

• EE-mam NE-ko-li-ko pee-TAHN-ya

But keep in mind that Serbian stress is not usually marked in normal writing.

Yes. Imam par pitanja is very common in everyday speech.

• par literally means a pair, but in colloquial Serbian it often means a couple of / a few
• nekoliko is a bit more neutral and standard
• par sounds a little more conversational

So both are natural:

• Imam nekoliko pitanja.
• Imam par pitanja.

It is neutral and works in both formal and informal situations.

You can say it:

• in class
• in a meeting
• in an email
• in casual conversation

If you want to sound especially polite, you would usually expand the sentence rather than change its basic grammar, for example:

• Imam nekoliko pitanja u vezi s tim. = I have several questions about that.
• Izvinite, imam nekoliko pitanja. = Excuse me, I have several questions.

So the sentence itself is simple, standard, and broadly appropriate.