Shule yetu ina sare ya bluu na nyeupe.

A quick breakdown:

• Shule = school
• yetu = our
• ina = has
• sare = uniform
• ya = a linking word meaning something like of or in here
• bluu = blue
• na = and
• nyeupe = white

So the structure is basically: Our school has a uniform of blue and white.

In Swahili, possessives normally come after the noun they describe. So:

• shule yetu = our school
• kitabu changu = my book
• rafiki yako = your friend

This is the normal word order, so shule yetu sounds natural, while yetu shule does not.

Ina is the correct has form for shule.
The noun shule belongs to a noun class that takes the subject prefix i-, and Swahili expresses to have with -na. So:

• i-
  • -na → ina = it has

Because shule is the subject, ina means the school has.

No. Ina means has, not is.

Compare:

• Shule yetu ina sare = Our school has a uniform
• Shule yetu ni kubwa = Our school is big

Swahili uses different structures for being and having, so ina is specifically about possession.

Here ya links sare to the color phrase bluu na nyeupe. It gives the sense of:

• a uniform of blue and white
• a blue-and-white uniform

This ya is very common in Swahili for connecting a noun to another descriptive idea. It is often called a connective or associative marker.

Because ya makes the color description sound more natural here.
With school uniforms, Swahili very often uses the pattern:

• noun + ya + color(s)

So sare ya bluu na nyeupe is a very natural way to say a blue-and-white uniform or a uniform in blue and white.

Here it means and:

• bluu na nyeupe = blue and white

But na can also mean with in other contexts. Swahili uses the same word for both ideas, so you understand it from context.

Swahili does not usually use articles like English a, an, or the.
So sare can mean:

• a uniform
• the uniform
• sometimes just uniform(s)

The exact meaning depends on context.

Here it is most naturally understood as singular: a uniform.
But sare is one of those nouns that can look the same in singular and plural in everyday use, so context matters a lot.

In this sentence, the idea is usually that the school has one school uniform style, so English often translates it naturally as a uniform.

Swahili possessives change form to agree with the noun they describe.
For shule, the correct form of our is yetu:

• shule yetu = our school
• nyumba yetu = our house

So yetu is not just a fixed word by itself; it matches the noun class of shule.

Yes. Nyeupe means white, and it can directly describe a noun in many cases:

• nguo nyeupe = white clothes
• karatasi nyeupe = white paper

In this sentence, though, the whole phrase ya bluu na nyeupe works together to describe the uniform’s colors, which is why the full expression sounds natural.