Kuzenimle parkta yürürken uzun uzun konuştuk.

It breaks down as:

• kuzen = cousin
• -im = my
• -le = with

So kuzenimle means with my cousin.

A useful thing to remember: in modern Turkish, -le / -la is attached directly to the noun, not written as a separate word.

Literally, it means with my cousin.

However, with a 1st person plural verb like konuştuk (we talked), Turkish often uses this pattern for a joint action that English would naturally express as my cousin and I. So in context, it strongly suggests that the speaker and the cousin were together doing the walking and talking.

Because Turkish often drops subject pronouns when the verb already shows the person.

In konuştuk, the ending tells you the subject is we. So adding biz is usually unnecessary unless you want extra emphasis, contrast, or clarity.

Because the locative suffix has four forms:

• -da
• -de
• -ta
• -te

After a voiceless consonant like k, Turkish uses -ta / -te instead of -da / -de. So:

• park
  • -ta = parkta

This is a regular sound rule in Turkish.

It is the locative suffix, which usually means in, at, or on, depending on context.

So parkta means in the park or at the park.

It is formed like this:

• yürü- = walk
• -r = aorist marker here
• -ken = while / when

So yürürken means while walking or when walking.

In this sentence, it describes an action happening at the same time as the main action.

Because verb + -ken is a very common Turkish way to express while doing something.

It does not match English word-for-word. English often uses while + past continuous or while + -ing, but Turkish can simply use -ken attached to an appropriate verb form. So yürürken naturally corresponds to while walking or while we were walking.

Normally, the subject of a -ken clause is understood from the main clause unless another subject is stated.

Here, the main verb is konuştuk = we talked, so yürürken is understood as while we were walking.

Yes, yürüyorken is possible and also means while walking / while we were walking.

But yürürken is very common and often sounds smoother and more natural in sentences like this. Turkish frequently uses the -rken pattern for actions happening at the same time.

This is a common Turkish repetition pattern. Repeating a word can create an adverbial meaning or add emphasis.

So uzun uzun does not mean a clumsy literal long long. It means something like:

• at length
• for a long time
• in detail

So uzun uzun konuştuk means we talked at length or we talked for quite a while.

It breaks down like this:

• konuş- = speak / talk
• -tu- = past tense here
• -k = we

So konuştuk means we talked.

More technically, the past tense suffix is from the -DI family, which changes according to vowel harmony and voicing. Here it appears as -tu.

Two things are happening:

1. Vowel harmony
   The suffix vowel matches the previous vowel pattern, so here it becomes u.

2. Consonant devoicing
   The verb stem ends in ş, which is voiceless, so the past tense uses t rather than d.

That is why you get konuş-tuk, not konuş-duk.

Because Turkish normally puts the finite verb at the end.

Everything before konuştuk sets up the situation:

• Kuzenimle = with my cousin
• parkta = in the park
• yürürken = while walking
• uzun uzun = at length
• konuştuk = we talked

This verb-final structure is one of the most basic word-order patterns in Turkish.

Yes. Turkish word order is flexible, and different orders can change emphasis.

For example, these are also possible:

• Parkta kuzenimle yürürken uzun uzun konuştuk.
• Uzun uzun parkta kuzenimle yürürken konuştuk.

But the original sentence sounds natural and neutral. Even when other parts move around, the main verb usually stays at the end.

It sounds perfectly normal in everyday Turkish.

Nothing in it is unusually formal. In fact, all of these are very common and useful patterns:

• -le for with
• -ta for location
• -ken for while
• repetition like uzun uzun
• a past-tense verb at the end

So it is a very natural example of standard spoken and written Turkish.