Japo alikuwa na aibu kidogo, Amina alitabasamu na kumbusu bibi shavuni.

Japo means although, even though, or though. It introduces a clause that gives a contrast:

• Japo alikuwa na aibu kidogo = Although she was a little shy

It is a common way to start a concessive clause in Swahili.

That word order is natural in Swahili. The sentence starts with the contrast clause first:

• Japo alikuwa na aibu kidogo = although she was a little shy

Then the main clause follows:

• Amina alitabasamu na kumbusu bibi shavuni = Amina smiled and kissed her grandmother on the cheek

Swahili can also say:

• Japo Amina alikuwa na aibu kidogo, alitabasamu...

So the noun can appear earlier too, but the original sentence is perfectly normal.

In Swahili, the subject is often built into the verb, not written as a separate word.

In both alikuwa and alitabasamu, the a- means he/she.

So:

• a-li-kuwa = he/she was
• a-li-tabasamu = he/she smiled

Swahili does not usually mark gender here, so a- can mean either he or she. We know it is she because of Amina and the context.

This is a very common Swahili expression.

• kuwa na aibu literally means to have shyness / to have shame
• In natural English, that often becomes to be shy, to feel shy, or sometimes to be embarrassed

So alikuwa na aibu is literally she was with shyness, but idiomatically it means she was shy.

Kidogo means a little, slightly, or somewhat.

So:

• aibu kidogo = a little shyness
• alikuwa na aibu kidogo = she was a little shy

It softens the statement, just like a little or slightly in English.

No, it has two different functions here.

1. In alikuwa na aibu, na means with / have

   • kuwa na = to have
   • so alikuwa na aibu = she had shyness / she was shy

2. In alitabasamu na kumbusu, na means and

   • it links the two actions: smiling and kissing

So the same word na can mean different things depending on the structure around it.

Alitabasamu breaks down like this:

• a- = he/she
• -li- = past tense
• -tabasamu = smile

So alitabasamu means she smiled.

This is a very typical Swahili verb pattern:

• subject marker + tense marker + verb stem

Because kumbusu can be analyzed as:

• ku-m-busu

Here:

• ku- = infinitive marker, to
• m- = object marker for him/her
• -busu = kiss

So kumbusu means to kiss him/her.

In this sentence, the person being kissed is bibi, so the m- refers to her. Swahili often uses this object marker with human objects, even when the noun is also stated:

• kumbusu bibi = to kiss grandmother / to kiss her grandmother

After na, using this infinitive form is a natural way to connect the second action to the first one.

Here, bibi means grandmother.

Depending on context, bibi can also mean things like old lady or madam, but in this sentence it is understood as grandmother.

Shavuni comes from:

• shavu = cheek
• -ni = a locative ending

So shavuni means on the cheek, at the cheek, or in the cheek area, depending on context.

In this sentence:

• kumbusu bibi shavuni = kiss grandmother on the cheek

The ending -ni is very common in Swahili for places and locations.