Nilimsikia bibi akisema ati jogoo amewika mapema kuliko kawaida leo.

A helpful way to parse it is:

• Nilimsikia bibi = the main part, meaning I heard grandma / the old lady
• akisema = saying or as she was saying
• ati = introduces what was said, roughly that
• jogoo amewika mapema kuliko kawaida leo = the reported message

So the structure is basically:

I heard [grandma] [saying [that the rooster has crowed earlier than usual today]].

Nilimsikia can be broken down like this:

• ni- = I
• -li- = past tense
• -m- = him/her or singular animate object marker
• -sikia = hear

So nilimsikia literally means I heard him/her.

Then bibi is added to show who that him/her is.

It can look repetitive from an English perspective, but this is normal in Swahili.

The -m- object marker already tells you the object is a singular animate being, and bibi names that person explicitly.

So Swahili can do both:

• Nilimsikia = I heard her
• Nilimsikia bibi = I heard grandma / the old lady

Using the object marker with a specific human or animate object is very common and often sounds natural.

It could mean more than one thing, depending on context.

Common meanings of bibi include:

• grandmother / grandma
• old lady
• sometimes madam in certain contexts

So without extra context, bibi could be:

• the speaker’s grandmother
• someone else’s grandmother
• simply an elderly woman

Swahili often leaves this kind of detail to context.

Because kusikia means to hear, while kusikiliza means to listen.

• kusikia = perceive sound
• kusikiliza = pay attention to sound

So:

• Nilimsikia bibi akisema... = I heard grandma saying...
• Nilimsikiliza bibi... would mean something more like I was listening to grandma...

The sentence is about hearing what she said, not necessarily intentionally listening.

This is a very common learner question.

akisema is built from:

• a- = she/he
• -ki- = a marker often showing an action in progress, simultaneous action, or an action connected to another one
• -sema = say

So akisema here means something like:

• saying
• as she was saying
• while saying

After verbs of perception like kusikia (to hear) and kuona (to see), this pattern is very common:

• Nilimwona akitembea = I saw him walking
• Nilimsikia akiimba = I heard her singing

If you used alisema, that would feel more like a separate completed statement: she said.
But akisema ties the action directly to what was heard.

Here ati introduces reported speech or reported content. In English, it often corresponds to that.

So in this sentence, it links akisema to the message that follows.

A useful way to think of it is:

• akisema ati... = saying that...

A few extra notes:

• ati is very common in spoken Swahili
• it can sometimes carry a nuance of supposedly or so they say, depending on context
• in a more neutral or formal style, kwamba can often be used instead

So Nilimsikia bibi akisema kwamba... would also be possible, though ati sounds very natural in everyday speech.

amewika breaks down as:

• a- = he/she or singular animate subject marker
• -me- = perfect/completive marker
• -wika = crow (as a rooster does)

So amewika means something like:

• has crowed
• has already crowed
• sometimes simply crowed, depending on the context in English

The -me- form usually shows a completed action that is relevant to the current situation. That fits well here: the rooster’s crowing has happened, and that fact is what grandma is commenting on.

Because jogoo is animate, and animate nouns in Swahili often take the same agreement pattern as people.

So even though jogoo does not look like a typical class 1 noun, it still commonly takes:

• singular animate agreement: a-
• plural animate agreement: wa-

That is why you get:

• jogoo amewika = the rooster has crowed

This is a broader Swahili pattern: many animals behave like animate nouns in agreement.

Literally, it is something like:

• kuliko = than
• kawaida = usual / normal custom / usual way

So kuliko kawaida means:

• than usual
• than normal
• more than is customary

With mapema, it gives:

• mapema kuliko kawaida = earlier than usual

This is the normal way Swahili forms many comparisons:

• kubwa kuliko... = bigger than...
• haraka kuliko... = faster than...
• mapema kuliko kawaida = earlier than usual

In context, leo most naturally goes with the reported event:

• the rooster crowed earlier than usual today

That is the most immediate reading because leo comes inside the reported content.

At the same time, because the whole sentence is about what the speaker heard, the hearing is also understood as part of that same general situation unless context says otherwise.

Swahili time words are fairly flexible, so you could also place leo elsewhere for a different emphasis, for example:

• Leo nilimsikia bibi akisema... = Today I heard grandma saying...
• Nilimsikia bibi leo akisema... = I heard grandma today saying...

So placement can affect what feels most prominent.

Yes. Swahili allows several natural variants, depending on style and emphasis. For example:

• Nilisikia bibi akisema ati...
• Nilimsikia bibi akisema kwamba...
• Leo nilimsikia bibi akisema ati...

The original sentence is perfectly natural, but these variations show a few common choices:

• with or without the object marker
• ati vs kwamba
• moving leo for emphasis

The core grammar stays the same: a main verb of perception, a dependent -ki- verb, and then reported content.