Hapana, sipendi kahawa usiku.

Hapana means no. It is often used as a full response to something someone has just asked or suggested.

In Hapana, sipendi kahawa usiku, it works like:

No, I don’t like coffee at night.

It comes first because it sets up the reply before the speaker gives the reason or full statement.

Sipendi can be broken down like this:

• si- = I do not
• -pend- = the verb root meaning like / love
• -i = the final vowel used in this negative form

So sipendi means I do not like.

This is the negative present form of the verb kupenda = to like / to love.

In Swahili, the subject is usually built into the verb itself. You do not always need a separate subject pronoun like I.

So:

• napenda = I like
• sipendi = I do not like

The I is already included in the verb form.
You could add mimi for emphasis, but it is not necessary:

• Mimi sipendi kahawa usiku = I don’t like coffee at night / As for me, I don’t like coffee at night

Swahili usually does not make negation by adding a separate word like English not. Instead, negation is built into the verb.

Compare:

• napenda = I like
• sipendi = I do not like

So the negative meaning is part of the verb structure itself, not a separate word placed after it.

Kahawa means coffee. In this sentence it refers to coffee in a general sense, like the drink.

As in English, whether it means coffee in general, coffee as a beverage, or a cup of coffee depends on context.

Swahili does not have articles like English a, an, and the.

So kahawa can mean:

• coffee
• a coffee
• the coffee

The exact meaning depends on context. In this sentence, the natural meaning is just coffee in general.

Usiku means night or at night, depending on context.

In this sentence, it means at night:

• sipendi kahawa usiku = I don’t like coffee at night

So even though English needs the preposition at, Swahili can often express that idea with just the time word itself.

Swahili often uses time words directly without a preposition where English would use at, in, or on.

For example:

• asubuhi = in the morning
• mchana = during the day / in the daytime
• jioni = in the evening
• usiku = at night

So usiku by itself is enough to mean at night.

The basic word order here is very natural:

• Hapana, sipendi kahawa usiku.

This is roughly:

No, I don’t like coffee at night.

Swahili word order is fairly flexible, but this version is the most straightforward.
You may also hear other orders for emphasis, but learners should treat this one as the standard pattern:

• sipendi = verb
• kahawa = object
• usiku = time expression

The positive version would be:

Ndiyo, napenda kahawa usiku.

or simply:

Napenda kahawa usiku.

Here:

• ndiyo = yes
• napenda = I like

So the contrast is:

• napenda = I like
• sipendi = I do not like

Kupenda can mean both to like and to love. The exact meaning depends on context.

For example:

• Ninapenda kahawa = I like coffee
• Ninakupenda = I love you

In your sentence, because the object is kahawa, the meaning is clearly like, not love.

A simple pronunciation guide is:

hah-PAH-nah, see-PEN-dee kah-HAH-wah oo-SOO-kee

A few helpful points:

• h is pronounced clearly
• a, e, i, o, u are usually pronounced consistently, more like pure vowels
• stress in Swahili often falls near the second-to-last syllable

So:

• Hapana → ha-PA-na
• sipendi → si-PEN-di
• kahawa → ka-HA-wa
• usiku → u-SI-ku

The comma reflects a pause, just like in English after No at the start of a sentence.

So:

Hapana, sipendi kahawa usiku.

is like:

No, I don’t like coffee at night.

The comma is natural in writing, though in casual writing people may sometimes omit punctuation.