Jamaa yangu amefika.

In Swahili, possessives normally come after the noun, not before it.

So:

• jamaa yangu = my relative
• literally: relative my

That word order is completely normal in Swahili.

This is a pattern you just need to get used to with some human nouns like jamaa, baba, and mama. Even though jamaa refers to a person, the possessive is yangu in the singular:

• jamaa yangu = my relative
• jamaa zangu = my relatives

At the same time, the verb still uses the normal human subject agreement, which is why you get a- in amefika. So the possessive pattern and the verb agreement do not always look exactly the same.

Amefika can be broken down like this:

• a- = he/she subject marker
• -me- = perfect marker, often like has
• fika = arrive / reach

So amefika means he/she has arrived.

Because Swahili usually packs several pieces of meaning into a single verb form. A Swahili verb often includes:

• the subject
• the tense or aspect
• the verb root

So English he has arrived becomes one word in Swahili: amefika.

Because Swahili puts the subject inside the verb. The a- at the start of amefika already means he/she.

That means you can often leave out a separate subject pronoun if the context is clear. In fact, you could simply say:

• Amefika. = He/she has arrived.

Yes. Swahili does not distinguish he and she in this verb form. The subject marker a- can refer to either one.

So amefika can mean:

• he has arrived
• she has arrived

You need context to know which one is meant.

Most directly, amefika means has arrived. But in natural English, it can sometimes be translated as arrived or even is here now, depending on context.

The important idea is that the arrival is already completed and is relevant now.

Both can sometimes be translated in similar ways, but they are not exactly the same.

• amefika focuses on arrival or reaching the destination
• amekuja focuses more on coming

So if you want to emphasize that the person has actually arrived, amefika is often the better choice.

These forms differ in tense/aspect:

• amefika = has arrived
• anafika = is arriving / arrives
• alifika = arrived

So:

• -me- often gives a completed action with present relevance
• -na- often gives present / ongoing / habitual
• -li- gives past

You would say:

Jamaa zangu wamefika.

Notice the changes:

• yangu → zangu
• amefika → wamefika

The noun jamaa itself stays the same in form, but the agreement around it changes to show plural.

You say:

Jamaa yangu hajafika.

This means My relative has not arrived or My relative hasn't arrived.

The negative verb form here is built differently from the positive one, so it is best learned as a pattern:

• amefika = has arrived
• hajafika = has not arrived

Swahili does not use articles like English the and a/an. So a phrase like jamaa yangu does not need any extra word for definiteness.

Context tells you how definite or specific it is.

Yes, if it is already clear who you are talking about. Swahili often leaves out the full subject noun phrase when the context is known.

So:

• Jamaa yangu amefika. = My relative has arrived.
• Amefika. = He/She has arrived.

Both are natural, depending on context.

Because jamaa refers to a person. In Swahili, nouns referring to humans normally take human subject agreement on the verb, so you use a- in the singular and wa- in the plural.

So the natural form is:

• Jamaa yangu amefika.

not:

• Jamaa yangu imefika.