Si kwamba sipendi biskuti, bali chokoleti hunifanya niwe na kiu sana.

Si kwamba is an idiomatic way to say It’s not that... or It’s not because...

It introduces an explanation that the speaker wants to reject before giving the real reason.

So in this sentence, the speaker is saying:

• It’s not that I don’t like biscuits...
• ...rather, chocolate makes me very thirsty.

It is a very natural pattern in Swahili for correcting a possible misunderstanding.

It may look like a double negative to an English speaker, but it is not functioning that way.

• Si kwamba = It’s not that...
• sipendi = I don’t like

So the whole part Si kwamba sipendi biskuti means:

It’s not that I don’t like biscuits.

The first negative is part of the larger frame si kwamba...
The second negative belongs to the verb sipendi itself.

So this is not turning into I do like. It is simply saying that disliking biscuits is not the issue.

sipendi breaks down like this:

• si- = negative marker for I
• -pend- = verb root meaning like / love
• -i = negative final vowel

So:

• napenda = I like
• sipendi = I don’t like

This is a very useful pattern to recognize in Swahili present tense negatives.

Bali means but rather, instead, or on the contrary.

It is stronger and more corrective than a simple but.
It is especially common after a negative idea, when the speaker wants to replace one explanation with another.

So:

• Si kwamba sipendi biskuti, bali...
• It’s not that I don’t like biscuits, but rather...

In everyday conversation, learners often first learn lakini for but, but bali is a great word to know because it fits this kind of contrast very well.

Yes, you could say lakini, and people would understand you. But the nuance is a little different.

• lakini = plain but
• bali = but rather / instead

In this sentence, bali is especially appropriate because the speaker is not just contrasting two ideas; they are rejecting one explanation and giving the real one.

So bali sounds a bit more precise here.

Biskuti can be both singular and plural in normal usage.

This is common with many loanwords in Swahili, especially nouns in the N class. The form often stays the same, and number is shown by context or by other words.

For example:

• biskuti moja = one biscuit
• biskuti mbili = two biscuits
• napenda biskuti = I like biscuits / I like biscuit(s)

So in your sentence, biskuti does not change form.

They are loanwords adapted to Swahili spelling and sound patterns.

• biskuti comes from biscuit
• chokoleti comes from chocolate

Swahili usually spells borrowed words in a way that matches how they are pronounced in Swahili. That is why they may look different from the English originals.

This is very common and completely normal in Swahili.

Hunifanya means makes me or usually makes me.

It can be broken down like this:

• hu- = habitual or general action
• -ni- = me
• -fanya = make / do

So:

• hunifanya = it makes me / it tends to make me

In this sentence:

• chokoleti hunifanya...
• chocolate makes me... or chocolate tends to make me...

The hu- often gives a sense of something that generally happens, not just one single occasion.

Niwe is a form of kuwa (to be) in the subjunctive.

After verbs like -fanya when they mean make someone do/be something, Swahili often uses a following verb in the subjunctive.

So:

• hunifanya niwe na kiu
• literally: it makes me be with thirst

More natural English:

• it makes me thirsty

Here is the breakdown:

• ni- = I
• -we = subjunctive form of kuwa

So niwe means something like that I be.

Kuwa na kiu means to be thirsty.

Literally, it is:

• kuwa = to be
• na = with / have
• kiu = thirst

So word-for-word it is something like to be with thirst or to have thirst, but the natural English meaning is simply:

to be thirsty

This is a useful pattern in Swahili. Compare:

• kuwa na njaa = to be hungry
• kuwa na hofu = to be afraid / to have fear

Sana means very, a lot, or greatly, depending on context.

In this sentence:

• na kiu sana = very thirsty

A useful thing to notice is that sana usually comes after the word or phrase it intensifies.

Examples:

• napenda sana = I like it very much
• ni kubwa sana = it is very big
• ana kiu sana = he/she is very thirsty

So the word order may feel different from English, but it is very normal in Swahili.

Because Swahili normally puts sana after the idea it is strengthening.

English says:

• very thirsty

Swahili says:

• na kiu sana

So the meaning is the same, but the placement is different. This is one of those word-order habits that becomes natural with practice.

A more literal rendering would be:

It is not that I don’t like biscuits; rather, chocolate usually makes me be very thirsty.

That sounds unnatural in English, so a smoother translation is:

It’s not that I don’t like biscuits, but chocolate makes me very thirsty.

Literal translations can help you see the grammar, but natural translations are better for understanding the message.

Yes, they are very close, and both can mean It’s not that...

You may hear or see:

• Si kwamba
• Sio kwamba
• Siyo kwamba

These are closely related variants. For a learner, the important thing is to recognize the expression and its function: it introduces a mistaken explanation that the speaker then corrects.

In your sentence, Si kwamba is perfectly natural.