Asha ameitwa kwenye usaili.

Ameitwa is made of several pieces:

• a- = subject marker for he/she (singular person)
• -me- = perfect marker, often like English has
• -itwa = be called, the passive form related to kuita (to call)

So ameitwa means he/she has been called. Since the subject is Asha, the sentence means Asha has been called.

In Swahili, the verb usually already shows the subject. The a- in ameitwa tells you the subject is a singular person, so a separate word for she is not necessary.

Also, Swahili does not normally mark gender in verbs, so a- can mean he or she. You know it is she here because of Asha.

The passive is used because the focus is on Asha, the person receiving the action, not on whoever did the calling.

So:

• Asha ameitwa... = Asha has been called...
• An active version would mention the caller, such as They have called Asha...

This is very natural in Swahili, especially when the doer is unknown, unimportant, or obvious from context.

It can mean both.

• kuitwa can mean to be called/summoned
• It can also mean to be called by a name or to be named

For example, learners often meet unaitwa nani?, which means What are you called? / What is your name?

In Asha ameitwa kwenye usaili, the context makes the meaning has been called/summoned, not is named.

Kwenye is a locative word. Depending on context, it can mean in, on, at, or sometimes something English expresses as to.

In this sentence, kwenye usaili is naturally understood as something like:

• to the interview
• for the interview
• at the interview

English chooses whichever sounds most natural in context.

Swahili normally does not use articles like a, an, and the.

So usaili can mean:

• an interview
• the interview
• just interview

The exact English article is supplied from context when translating.

Yes, very often a place or location can be expressed with -ni.

So usailini would mean at/to the interview as well.
Both kwenye usaili and usailini are understandable, though kwenye is extremely common in everyday Swahili.

Because Swahili packs that information into the verb itself.

In ameitwa:

• -me- gives the has idea
• the passive form gives the been called idea

So one Swahili verb can correspond to several English words.

The difference is mainly tense/aspect:

• ameitwa = has been called
• aliitwa = was called

Ameitwa often suggests a present result or a recent event that still matters now.
Aliitwa is a more straightforward past event.

Usaili is a noun, not a verb. It means interview.

It is related to the verb kusaili, which means to interview.
So in this sentence:

• usaili = the interview
• kwenye usaili = at/to/for the interview