Mkojo una damu.

Here una means something like has or contains.

It can be broken down as:

• u- = the subject marker that agrees with mkojo
• -na = have / be with

So Mkojo una damu is literally Urine has blood.

One thing that can confuse learners: una can also mean you have in other sentences. Here it does not mean you have, because it is agreeing with mkojo, not with you.

Because mkojo belongs to a noun class in Swahili that takes the subject marker u-.

Swahili verbs must agree with the noun class of the subject. So:

• mkojo → takes u-
• u- + -na → una

That is why the sentence is Mkojo una damu, not Mkojo ina damu.

This noun-class agreement is a very important part of Swahili grammar.

Yes. Mkojo is the subject.

The structure is:

• Mkojo = subject
• una = verb
• damu = what the urine has/contains

So the sentence follows a straightforward pattern:

Subject + verb + object/complement

That makes it fairly easy to parse once you know what una is doing.

Swahili often expresses this idea differently from English.

Instead of saying:

• There is blood in the urine

Swahili can say:

• Urine has blood

So Mkojo una damu is a natural way to express that idea.

A more explicitly English-like version would be something like:

• Kuna damu kwenye mkojo = There is blood in the urine

Both can work, but the given sentence uses the common Swahili pattern X has Y.

No. Swahili does not use articles like English a or the.

So damu can mean:

• blood
• the blood
• sometimes some blood

The exact sense depends on context.

In this sentence, damu is simply blood. Nothing extra is needed before it.

Yes, in practical terms, damu is the thing that mkojo has or contains, so you can think of it as the object/complement of una.

For a learner, the important point is:

• mkojo = the thing being talked about
• damu = the thing found in it

So the sentence is saying that blood is present in the urine.

Not in this sentence.

Even though una can mean you have in sentences like:

• Una kitabu = You have a book

here the context and agreement show that una goes with mkojo.

So:

• Mkojo una damu = The urine has blood / contains blood

not

• Urine, you have blood

This is a good example of why noun-class agreement matters in Swahili.

Because it is not necessary unless the speaker wants to specify it.

Mkojo by itself just means urine. If you want to say whose urine, you add that information:

• mkojo wangu = my urine
• mkojo wako = your urine
• mkojo wake = his/her urine

So you could say:

• Mkojo wako una damu = Your urine has blood

But the basic sentence leaves that unspecified.

It is natural Swahili.

It may sound slightly different from the most natural English wording, because English often prefers:

• There is blood in the urine
• The urine contains blood

But Swahili very naturally uses -na to express has / is with, so Mkojo una damu is a normal and clear way to say it.

A simple pronunciation guide would be:

m-KO-jo OO-na DA-mu

A few tips:

• mkojo has a pronounced m at the beginning, even before k
• j in mkojo sounds like the j in jam
• vowels are usually clear and pure:
  • a as in father
  • u like oo in food

So it is approximately:

mkojo una damu → m-KO-jo oo-na DA-moo

Learners sometimes try that because they know uko and na, but Mkojo una damu is the better form here.

With nouns, Swahili commonly uses the agreement form with -na directly:

• Mkojo una damu
• Mti una matunda = The tree has fruit

So for this sentence, una is the form you should learn and use.