Sokoni, tulinunua papai moja na zabibu kidogo kwa wageni.

Sokoni comes from soko (market) plus the locative ending -ni.

So:

• soko = market
• sokoni = at the market / in the market / to the market, depending on context

In this sentence, Sokoni means at the market.

The ending -ni is very common in Swahili for places:

• nyumbani = at home
• shuleni = at school
• mjini = in town

Putting Sokoni first sets the scene, like saying:

• At the market, we bought...

This is similar to English fronting for emphasis or topic-setting.

A more neutral order could also be:

• Tulinunua papai moja na zabibu kidogo kwa wageni sokoni.

Both are understandable, but starting with Sokoni highlights the location first.

Tulinunua breaks down like this:

• tu- = we
• -li- = past tense marker
• -nunua = buy

So tulinunua literally means we-bought.

This kind of verb-building is very normal in Swahili. A lot of information that English puts into separate words is built into one verb.

Because the tu- at the beginning of tulinunua already means we.

In Swahili, subject pronouns are often built into the verb, so a separate pronoun is usually unnecessary.

• tulinunua = we bought

You can add sisi (we) for emphasis:

• Sisi tulinunua... = We bought...

But without emphasis, the shorter form is more natural.

In Swahili, adjectives and numbers usually come after the noun.

So:

• papai moja = one papaya
• not moja papai

This is the normal order:

• mtoto mdogo = small child
• kitabu kimoja = one book
• papai moja = one papaya

Moja means one, and it agrees with the noun class of papai.

Papai is a singular noun, and moja is the correct form here for one papaya.

So:

• papai moja = one papaya

If you made it plural, you would say:

• mapapai mawili = two papayas

This shows how numbers can change to match noun classes.

Zabibu kidogo means a little / some grapes or a small amount of grapes.

Here, kidogo is being used as a quantity expression, not just as an ordinary adjective.

There is a small difference in feeling:

• zabibu kidogo = some grapes / a small amount of grapes
• zabibu chache = a few grapes

So kidogo focuses more on small quantity, while chache focuses more on small number.

Both can make sense, but zabibu kidogo is natural if the speaker is thinking of grapes as something bought in a small amount.

That is because kidogo here is not behaving like a normal descriptive adjective such as small. It is functioning more like a fixed quantity word meaning a little / some.

So in this sentence:

• zabibu kidogo = some grapes / a little grapes in sense, more naturally a small amount of grapes

If you wanted to describe the grapes as physically small, you would use normal adjective agreement:

• zabibu ndogo = small grapes

So:

• kidogo here = quantity
• ndogo = size

That distinction is very useful.

Kwa wageni means for the guests.

• kwa can mean for, to, at, or from, depending on context
• here it marks the beneficiary: the people the fruit was bought for

So:

• kwa wageni = for the guests

This is a very common use of kwa with people.

Because wageni is the plural form of mgeni.

• mgeni = guest / visitor
• wageni = guests / visitors

This is part of the common noun class pattern for people:

• singular often begins with m-
• plural often begins with wa-

Examples:

• mtoto / watoto = child / children
• mtu / watu = person / people
• mgeni / wageni = guest / guests

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

So a noun like papai can mean:

• a papaya
• the papaya

The exact meaning depends on context.

In this sentence, moja makes it specifically one papaya, but there is still no separate article word.

Because the objects are stated directly after the verb:

• papai moja
• zabibu kidogo

In Swahili, object markers are often unnecessary when the full noun is present, especially when the object is being introduced as new information.

So:

• tulinunua papai moja... = we bought one papaya...

That is completely normal.

Object markers are more common when the object is already known, specific, or replaced by a pronoun.

Yes, Swahili word order is somewhat flexible, especially with phrases like this.

For example, you may hear:

• Sokoni, tulinunua papai moja na zabibu kidogo kwa wageni.
• Sokoni, kwa wageni tulinunua papai moja na zabibu kidogo.

The version in your sentence is very natural because kwa wageni comes at the end and clearly tells us who the purchase was for.

In many cases, the end position sounds smooth and easy to process.