Tulimwona mbuni akitembea karibu na pundamilia.

It has four main parts:

• tu- = we
• -li- = past tense
• -m- = object marker for a singular animate object
• -ona = see

So tulimwona literally means we saw him/her/it.

In this sentence, that -m- refers to mbuni.

Because Swahili often uses an object marker on the verb even when the full object noun is also present, especially with animate objects.

So tulimwona mbuni is very natural for we saw the/an ostrich. The object marker helps show clearly that the verb is pointing to that specific animate being.

A learner may expect just tuliona mbuni, and that is possible in some contexts, but with animals or people, tulimwona mbuni is often more natural.

This is a spelling and sound pattern in Swahili.

The object marker is historically -mu-, but before a vowel-initial verb stem like -ona, it is usually written in the contracted form -mw-.

So:

• tu-li-mw-ona → written as tulimwona

That is the normal standard form learners will usually see.

Because Swahili commonly uses animate agreement for living beings, including animals.

That is why:

• -m- in tulimwona refers to the ostrich as a singular animate object
• a- in akitembea refers to the ostrich as a singular animate subject

So even though mbuni is not a human being, it is still treated grammatically as animate here.

akitembea can be broken down like this:

• a- = he/she/it, singular animate
• -ki- = a marker often meaning while / as
• -tembea = walk

So akitembea means while walking or as it was walking.

In this sentence, it describes the ostrich.

The ostrich.

The form a-ki-tembea agrees with the singular animate noun being described, and here that is mbuni. So the structure is:

• Tulimwona mbuni = we saw the ostrich
• akitembea karibu na pundamilia = while it was walking near the zebra

So the walking belongs to mbuni, not pundamilia.

Not always.

The marker -ki- can have meanings like while, as, and sometimes if, depending on context.

In this sentence, because it describes what the ostrich was doing at the time it was seen, the natural meaning is while walking or as it was walking.

Here karibu na is a fixed expression meaning near or close to.

So:

• karibu na pundamilia = near the zebra

The word na does often mean and or with, but in this sentence it is part of the expression karibu na, so it means near together with karibu.

Because Swahili does not use articles the way English does.

A noun like mbuni can mean an ostrich, the ostrich, or just ostrich, depending on context.

The same is true for pundamilia.

So learners should not look for a separate word matching the every time.

By form, these animal nouns are commonly treated like class 9/10 nouns, which often have the same form in singular and plural.

That is why:

• mbuni can be singular or plural depending on context
• pundamilia can also be singular or plural depending on context

However, because they are animals, Swahili often uses animate agreement with them in the verb, especially when referring to an individual creature. That is why you see -m- and a- in this sentence.

You know from context and meaning.

Many Swahili nouns do not change form between singular and plural, especially in class 9/10. So pundamilia can mean zebra or zebras.

In this sentence, the intended meaning tells you it is singular. If the wider context were different, it could be understood as plural.

The order here is the most straightforward and natural:

• Tulimwona = verb
• mbuni = object
• akitembea = describing what the object was doing
• karibu na pundamilia = location phrase

Swahili does allow some flexibility for emphasis, but this version is the clearest neutral order. A learner should treat this as a very good model pattern.

Yes, that sentence is possible.

But Tulimwona mbuni... is especially natural when the object is animate and specific. The object marker makes the connection to the ostrich very clear.

So:

• Tuliona mbuni... = possible
• Tulimwona mbuni... = often more natural for we saw the ostrich...

For learners, it is useful to notice that Swahili often likes object markers with people and animals.