Kıyafet takası toplama noktasının yanında başladı.

Because kıyafet takası is a Turkish noun compound.

In many Turkish noun compounds, the first noun stays bare, and the second noun takes the 3rd person possessive-looking suffix:

• kıyafet = clothing, clothes
• takas = swap, exchange
• kıyafet takası = clothes swap / clothing exchange

So takası here does not mean his/her swap. It is the normal form used in this kind of compound.

Yes, pretty much.

A very literal breakdown is:

• kıyafet = clothes/clothing
• takası = its exchange/swap

But in natural English, you would usually translate the whole phrase as:

• clothes swap
• clothing exchange

So the structure is more Turkish than English, but the meaning is straightforward.

Because it is connected to yanında.

Turkish often says X-in yanında for next to X.
So the noun before yanında usually appears in the genitive:

• toplama noktası = collection point
• toplama noktasının yanında = next to the collection point

So noktasının is there because yanında works with a genitive phrase before it.

Literally, it is built from yan meaning side.

Breakdown:

• yan = side
• yanı = its side
• yanında = at its side / by its side

So:

• toplama noktasının yanında
  literally = at the collection point’s side

In natural English, that becomes:

• next to the collection point
• beside the collection point

Because these are two different Turkish patterns:

1. Noun compound

   • kıyafet takası
   • This means clothes swap
   • The second noun gets the compound ending

2. Genitive + postposition-like structure

   • toplama noktasının yanında
   • Literally at the side of the collection point
   • The first part goes into the genitive, and yanında carries the possessed/location form

So even though both look possessive, they are doing different jobs.

It is another noun compound:

• toplama = collecting / collection
• nokta = point
• toplama noktası = collection point

Depending on context, it could also be understood as:

• pickup point
• drop-off point
• collection spot

Here, toplama functions like collection in English.

Because toplamak is the infinitive to collect, while toplama is a noun-like form meaning collecting or collection.

Compare:

• toplamak = to collect
• toplama = collecting / collection

So:

• toplama noktası = collection point

This is very common in Turkish: a verb stem plus a suffix can create a modifier that works like an English noun or adjective.

Because Turkish normally puts the finite verb at the end.

So the structure is:

• Kıyafet takası = the clothes swap
• toplama noktasının yanında = next to the collection point
• başladı = started

This verb-final order is very typical in Turkish.

Yes. Turkish word order is flexible, although the verb usually stays at the end.

For example, you could also say:

• Toplama noktasının yanında kıyafet takası başladı.

This would still mean the same thing, but the emphasis changes slightly.
Putting toplama noktasının yanında earlier can make the location feel more prominent.

Because the subject is singular:

• kıyafet takası = the clothes swap

So the verb is:

• başladı = it started

If the subject were plural, the verb could be plural too, depending on style and context. But here singular is correct.

It is the simple past tense of başlamak (to start / to begin).

• başlamak = to start
• başladı = started / began

So the sentence describes a completed event in the past.

No. Turkish usually does not use articles like English a/an/the.

So kıyafet takası can mean:

• a clothes swap
• the clothes swap

And toplama noktası / noktasının yanında can mean:

• a collection point
• the collection point

Which one sounds best in English depends on the context.

It is in the nominative form, which in Turkish usually has no ending.

That makes sense because it is the subject of the sentence:

• Kıyafet takası ... başladı
• The clothes swap ... started

So there is no accusative ending here, because this is not a direct object.

Sometimes, yes, depending on context. But its core meaning is more specifically:

• beside
• next to
• at the side of

So in this sentence, next to the collection point is the clearest translation.

If you want a looser sense like near, Turkish often has other ways to express that too.

A useful chunk-by-chunk reading is:

• Kıyafet takası = clothes swap
• toplama noktasının yanında = next to the collection point
• başladı = started

So the sentence is built as:

[Subject] + [Location] + [Verb]

That is a very helpful pattern to recognize in Turkish.