Ukanushi wa sentensi hii ni rahisi, kwa sababu tunatumia “si” na “ha-”.

Ukanushi means negation in a grammar context.

So ukanushi wa sentensi hii means the negation of this sentence or the negative form of this sentence.

This comes from the idea of making a statement negative, like changing is to is not in English.

Here, wa means of.

So:

• ukanushi wa sentensi = the negation of the sentence
• more literally: negation of sentence

This wa is a connector that links two nouns. English often uses of, while Swahili uses forms like wa, ya, la, cha, and others depending on the noun class.

In Swahili, demonstratives like this usually come after the noun, not before it.

So:

• sentensi hii = this sentence
• literally: sentence this

That is normal Swahili word order.

Compare:

• mtoto huyu = this child
• kitabu hiki = this book
• sentensi hii = this sentence

Because hii has to agree with the noun class of sentensi.

Sentensi is treated as a class 9 noun in the singular, and the class 9 form of this is hii.

So:

• sentensi hii = this sentence

If the noun belonged to a different class, the form of this would change.

For example:

• kitabu hiki = this book
• mtu huyu = this person

Ni is acting like is here.

So:

• ni rahisi = is easy

In Swahili, ni is commonly used to link the subject and what is being said about it.

So the structure is:

• Ukanushi wa sentensi hii ni rahisi
• The negation of this sentence is easy

Yes, rahisi means easy, and in this kind of sentence it works like an adjective or descriptive predicate.

It does not change form here because many Swahili adjectives borrowed from Arabic or other languages are often used in a fixed form. So you can say:

• ni rahisi = is easy
• si rahisi = is not easy

without changing rahisi itself.

Kwa sababu means because.

It introduces a reason:

• ... ni rahisi, kwa sababu tunatumia ...
• ... is easy, because we use ...

You can think of it as a common way to connect an explanation to the main statement.

Tunatumia can be broken down like this:

• tu- = we
• -na- = present tense marker
• -tumia = use

So:

• tu-na-tumia = we use / we are using

This is a very useful pattern in Swahili verb structure:
subject marker + tense marker + verb stem

This is one of the most important grammar points in the sentence.

si

Si is used to negate non-verbal statements, especially sentences like:

• Hii ni rahisi = This is easy
• Hii si rahisi = This is not easy

It often negates sentences with ni.

ha-

Ha- is the basic negative element used with verbs.

For example, from a verb like anatumia (he/she uses), the negative is:

• hatumii = he/she does not use

So the sentence is saying that negation is easy because Swahili uses these two common negative tools:

• si for one kind of negation
• ha- for verbal negation

No. Ha- is a prefix, not a full independent word.

It attaches to a verb form as part of verbal negation.

So learners often see it written with a hyphen, ha-, to show that it is a piece of a larger verb form, not a standalone word.

For example:

• anatumia = he/she uses
• hatumii = he/she does not use

The negative meaning is built into the verb.

Because the sentence is talking about the words themselves, not just using them normally in conversation.

In other words, this is a grammar explanation sentence.
It mentions si and ha- as grammatical items.

So they are being treated like examples or terms being discussed.

If you negate the two main parts, you get:

• Ukanushi wa sentensi hii si rahisi, kwa sababu hatutumii si na ha-.

That means:

• The negation of this sentence is not easy, because we do not use si and ha-.

Grammatically, the important changes are:

1. ni rahisi → si rahisi
2. tunatumia → hatutumii

This is actually a nice illustration of the sentence’s own point:

• use si to negate ni rahisi
• use a ha--type negative form to negate the verb tunatumia

Because Swahili usually does not use a separate word exactly like English not for ordinary verb negation.

Instead, negation is built into the verb itself.

So rather than:

• we not use

Swahili does something more like:

• we-do-not-use as one verb form

That is why learners need to pay attention to verb structure. In Swahili, tense, subject, and negation are often packed into one word.