Burada üç sene yaşadım.

Because Turkish often drops the subject pronoun when it is already clear from the verb ending.

In yaşadım, the -ım ending means I, so ben is not necessary.

• (Ben) burada üç sene yaşadım. = I lived here for three years.

You can add ben for emphasis, contrast, or clarity, but in normal speech it is usually omitted.

Burada means here or in this place.

It comes from bura / burası (this place, here) plus the locative ending -da / -de, which gives the meaning in / at.

So:

• bura = this place / here
• burada = in this place / here

In this sentence, burada simply means here.

Because in Turkish, expressions of duration usually appear without a case ending.

So when you say how long something lasted, you typically use a bare time expression:

• üç sene yaşadım = I lived for three years
• iki gün bekledim = I waited for two days
• bir saat çalıştık = We worked for an hour

So üç sene is correct because it tells us the length of time.

Both sene and yıl mean year.

In many contexts, they are interchangeable:

• üç sene = three years
• üç yıl = three years

A few general tendencies:

• yıl is often felt to be a bit more standard or neutral
• sene is very common in everyday speech and sounds natural

So Burada üç sene yaşadım and Burada üç yıl yaşadım both work.

Yaşadım is the verb yaşamak (to live) in the simple past, first person singular.

It breaks down like this:

• yaşa- = verb stem, from yaşamak
• -dı- = past tense suffix
• -m = I

So:

• yaşadım = I lived

This tense is often called the definite past or simple past in Turkish.

The past tense suffix changes shape according to vowel harmony and consonant harmony.

The basic pattern is:

• -dı / -di / -du / -dü
• or -tı / -ti / -tu / -tü

In yaşadım:

1. The last vowel before the suffix is a, so the vowel in the suffix becomes ı
2. The stem ends in a vowel (yaşa-), so the suffix uses d, not t

That gives:

• yaşa + dı + m → yaşadım

Because yaşadım is in the past tense, so it describes a period of living that is viewed as completed.

So:

• Burada üç sene yaşadım. = I lived here for three years.
  This usually suggests that period is over.

If you want to say you have been living here for three years and it is still true now, Turkish normally uses the present continuous with a duration marker:

• Burada üç senedir yaşıyorum.
• Burada üç yıldır yaşıyorum.

That means: I have been living here for three years.

The sentence is:

• Burada = here
• üç sene = three years
• yaşadım = I lived

So literally: Here three years lived-I

Turkish word order is flexible, but the verb usually comes last.

This version is very natural:

• Burada üç sene yaşadım.

You may also hear:

• Üç sene burada yaşadım.

Both are correct. The difference is mainly in focus:

• Burada üç sene yaşadım. → emphasizes here
• Üç sene burada yaşadım. → emphasizes three years

Yes, in informal speech and writing, many people say and write burda instead of burada.

• burada = standard/full form
• burda = common spoken contraction

Both mean the same thing, but burada is the safer choice for learners, especially in formal writing.

No. Yaşamak has more than one common meaning.

It can mean:

1. to live somewhere

   • Ankara’da yaşıyorum. = I live in Ankara.

2. to experience / go through

   • Büyük bir sorun yaşadık. = We experienced a big problem.

In your sentence, it clearly means to live somewhere.

Because Turkish often expresses duration without a separate word equivalent to English for.

English says:

• I lived here for three years.

Turkish says:

• Burada üç sene yaşadım.

The duration meaning is already understood from the time expression plus the verb. So no extra word is needed.

Usually no, not in standard usage.

-dir / -dır in time expressions such as üç senedir or üç yıldır normally goes with a verb meaning an action or state that has continued up to now:

• Burada üç senedir yaşıyorum. = I have been living here for three years.

But yaşadım is a completed past, so üç senedir yaşadım sounds wrong or unnatural in ordinary Turkish.

So remember:

• üç sene yaşadım = finished past duration
• üç senedir yaşıyorum = continuing up to now

Yes, very often that is the implication.

Because yaşadım presents the situation as a completed past fact, listeners will often understand:

• I lived here for three years
• that period is over now

However, context always matters. The sentence itself mainly says the living happened in the past for three years. In many real situations, that strongly suggests you no longer live here.

Sometimes in context, yes, but the core meaning of yaşamak is to live, not to stay.

So the most direct translation is:

• I lived here for three years.

If you specifically want stay, Turkish often uses other verbs depending on the context, such as kalmak.

Compare:

• Burada üç sene yaşadım. = I lived here for three years.
• Burada üç gün kaldım. = I stayed here for three days.

So yaşadım is about living, not just temporarily staying.

In Turkish, after a number, the noun normally stays in the singular form.

So:

• üç sene = three years
• iki gün = two days
• beş kitap = five books

You do not normally say:

• üç seneler ❌

This is a very common difference from English. After numbers, Turkish usually uses the singular noun.

It is completely natural and normal.

A native speaker could easily say:

• Burada üç sene yaşadım.

It is a simple, everyday way to say that someone lived in a place for three years in the past.