Mwalimu anaeleza kiini cha somo.

Mwalimu means teacher. Its plural is walimu.

This noun belongs to the human noun class pair often called class 1/2:

• singular: mwalimu
• plural: walimu

It can mean a school teacher, but in some contexts it can also mean an instructor, guide, or even be used as a respectful title.

Anaeleza can be broken down like this:

• a- = he/she
• -na- = present tense
• -eleza = explain

So anaeleza means he/she explains or he/she is explaining.

This is very typical Swahili verb structure: subject + tense + verb stem all in one word.

Because the subject is already built into the verb.

In anaeleza, the prefix a- already tells you the subject is he/she or a singular person noun such as mwalimu.

So Swahili often does not need a separate subject pronoun. The noun mwalimu is included here for clarity or emphasis:

• Anaeleza = He/she is explaining
• Mwalimu anaeleza = The teacher is explaining

It can mean either one.

The tense marker -na- is commonly used for:

• simple present: explains
• present progressive: is explaining

So the exact English translation depends on context. Swahili does not always separate those two the way English does.

Kiini means something like:

• core
• essence
• main point
• central idea

In this sentence, kiini cha somo means the core of the lesson or the main point of the lesson.

Kiini is a singular noun, and its plural is viini.

Cha here means of, but it is not a fixed word. It changes to agree with the noun before it.

In kiini cha somo:

• kiini = core/essence
• cha = of agreeing with kiini
• somo = lesson

So the phrase literally works like core of lesson.

A very important point: the connector agrees with kiini, not with somo.

For comparison:

• kitabu cha mwanafunzi = the student’s book / book of the student
• nyumba ya mwalimu = the teacher’s house

Here the form changes because different noun classes require different agreement.

Kiini is in the ki-/vi- noun class, often called class 7/8:

• singular: kiini
• plural: viini

That matters because agreement words must match the noun class. That is why the possessive connector is cha here.

So:

• kiini cha somo = the core of the lesson
• viini vya masomo = the cores/main points of the lessons

You do not need to memorize every noun class immediately, but noticing patterns like ki- → cha, vi- → vya is very useful.

Somo is a different noun, with plural masomo.

But in this phrase, cha does not agree with somo. It agrees with kiini, the noun being described.

So the structure is:

• kiini = the main noun
• cha somo = a phrase describing that noun

That is why cha is determined by kiini, not by somo.

Swahili usually does not use articles like a, an, or the.

So:

• mwalimu can mean a teacher or the teacher
• somo can mean a lesson or the lesson

Context tells you which meaning is intended.

That is very normal in Swahili, and learners quickly get used to it.

Yes, this sentence uses a very familiar order:

• Mwalimu = subject
• anaeleza = verb
• kiini cha somo = object

So it is basically Subject–Verb–Object, just like English:

• The teacher explains the core of the lesson

One difference is that Swahili packs more grammatical information into the verb itself.

Yes, if the context is clear.

You could simply say:

• Anaeleza kiini cha somo.

That would mean:

• He/she is explaining the core of the lesson
• or He/she explains the core of the lesson

Adding mwalimu makes the subject explicit:

• Mwalimu anaeleza kiini cha somo.

So Swahili often includes the noun even though the verb already shows the subject class.

A helpful rough breakdown is:

Mwa-li-mu a-na-e-le-za ki-i-ni cha so-mo

A few tips:

• Swahili vowels are usually pronounced clearly and consistently.
• Each vowel is sounded: kiini is ki-i-ni, not one blurred syllable.
• Stress is usually on the second-to-last syllable of a word:
  • mwa-LI-mu
  • anae-LE-za
  • ki-I-ni
  • SO-mo

So a rough pronunciation guide would be:

mwa-LI-mu a-na-e-LE-za ki-I-ni cha SO-mo