Da li je ključ u torbi?

Da li is a very common way to form a yes/no question in Serbian.

So:

• Da li je ključ u torbi? = Is the key in the bag?

It does not literally mean yes or no, but it signals that the speaker is asking for confirmation.

A very common alternative is:

• Je li ključ u torbi?

Both mean the same thing.

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

Here it means is:

• je = is

So the sentence structure is:

• Da li = question marker
• je = is
• ključ = key
• u torbi = in the bag

Ključ is in the nominative singular because it is the subject of the sentence.

The question is about the key’s location:

• ključ = the key / a key

Serbian usually uses the nominative for the subject of a sentence.

Also, ključ is a masculine noun.

Because after u meaning in for location, Serbian uses the locative case.

• dictionary form: torba = bag
• locative singular: torbi

So:

• u torbi = in the bag

This is one of the most important case patterns to learn:

• u + locative = in / at a place

Not always. U can mean different things depending on the case that follows.

Here:

• u torbi = in the bag
  because torbi is locative, showing location

But with the accusative, u can mean into:

• u torbu = into the bag

So the contrast is:

• u torbi = in the bag
• u torbu = into the bag

Serbian does not have articles like English a and the.

So ključ can mean:

• a key
• the key

and torbi can be understood as:

• in a bag
• in the bag

The exact meaning usually comes from context. In many situations, the English translation will naturally use the, even though Serbian does not have a separate word for it.

Yes, it is perfectly natural and standard.

But in everyday speech, many speakers would also say:

• Je li ključ u torbi?

This is shorter and very common in conversation.

So both are good:

• Da li je ključ u torbi?
• Je li ključ u torbi?

The first can sound a bit more neutral or explicit; the second is often more conversational.

The neutral order here is:

• Da li je ključ u torbi?

Literally, it is something like:

• Question marker + is + key + in bag?

In natural English, of course, we say:

• Is the key in the bag?

Serbian word order is more flexible than English, but this version is the straightforward, standard one for a yes/no question.

Some common answers are:

• Da. = Yes.
• Da, ključ je u torbi. = Yes, the key is in the bag.
• Jeste. = Yes, it is.
• Ne. = No.
• Ne, ključ nije u torbi. = No, the key is not in the bag.
• Nije. = No, it isn’t.

Notice:

• je = is
• nije = is not

Torba is a feminine noun.

That matters because Serbian noun endings change by gender, number, and case.

For this word:

• torba = nominative singular
• torbi = locative singular

So the feminine noun torba changes to torbi after u when you mean location.

A simple pronunciation guide is:

• Da li je ključ u torbi?
  roughly: dah lee yeh klyooch oo TOR-bee

A few notes:

• je sounds like yeh
• ključ has lj, which is a soft sound somewhat like the lli in some pronunciations of million
• č sounds like ch in church

So ključ is approximately klyooch.

No, not in standard Serbian for this sentence.

You need the verb je because the sentence means:

• Is the key in the bag?

Without je, the sentence would be incomplete.

So:

• Da li je ključ u torbi? = correct
• Da li ključ u torbi? = not correct standard Serbian

Yes. Because Serbian has no articles, the sentence can be understood either way depending on context.

• ključ can mean the key or a key
• u torbi can mean in the bag or in a bag, depending on the situation

In many real contexts, though, listeners will naturally understand the intended meaning from what has already been said.