Yüklenici iş programını sundu.

• Yüklenici = the subject, meaning contractor.
• iş programını = the direct object, meaning the work schedule / work plan in the accusative form.
• sundu = the verb, meaning submitted / presented.

So the structure is:

Subject + Object + Verb

which is very common in Turkish.

Because this noun phrase is the specific direct object of the sentence.

In Turkish, a definite/specific direct object usually takes the accusative ending.
So:

• iş programı = work schedule / a work schedule
• iş programını = the work schedule as the object of the verb

Since the sentence talks about a particular work schedule that was submitted, Turkish marks it.

It is actually made of more than one part:

• program = program/schedule
• program-ı = programı, part of the compound iş programı
• program-ı-n-ı = programını

Why this happens:

1. iş programı is a noun compound in Turkish.
2. In this kind of compound, the second noun gets a possessive-looking ending:
   iş program-ı
3. When you then add the accusative ending, Turkish inserts a buffer -n-: iş program-ı-n-ı

So iş programını is not random; it is built regularly.

The -n- is a buffer consonant.

When a noun already has a third-person possessive ending such as -ı / -i / -u / -ü, and you add another suffix like the accusative, Turkish often inserts -n- to make pronunciation and structure clear.

So:

• iş programı
• • accusative
• becomes iş programını

This is a very common pattern in Turkish.

Sundu is the simple past tense, third person singular, of the verb sunmak.

Breakdown:

• dictionary form: sunmak = to submit / to present
• stem: sun-
• past tense ending: -du
• result: sundu = he/she/it submitted or simply submitted

Because Turkish verbs already show person, there is no need for a separate word like he or she here.

Turkish has no articles like English a/an/the.

Instead, definiteness is often shown by:

• context
• word order
• case marking, especially the accusative for specific direct objects

So in this sentence, iş programını tells you that the object is specific/definite, which is one reason English translation uses the work schedule.

Because Turkish is usually an SOV language:

Subject + Object + Verb

So:

• Yüklenici = subject
• iş programını = object
• sundu = verb

This is the most neutral and natural order in Turkish.
English normally prefers SVO, so the Turkish order may feel reversed to English speakers.

Yes, Turkish word order is flexible, but changing it usually changes emphasis.

For example:

• Yüklenici iş programını sundu.
  Neutral: The contractor submitted the work schedule.

• İş programını yüklenici sundu.
  Emphasis on the contractor as the one who submitted it.

• Sundu yüklenici iş programını.
  Possible in special contexts, but much less neutral.

So the original sentence is the plain, standard version.

Yes. It is a noun compound.

• iş = work
• program = program/schedule
• iş programı = work schedule / work plan

This is a very common Turkish structure: the first noun modifies the second, and the second noun takes a special ending.

Other examples of the same pattern:

• ders programı = class schedule
• şehir merkezi = city center
• yol haritası = road map

So iş programı is a normal Turkish compound, not just two unrelated words next to each other.

Approximate pronunciation:

• yüklenici ≈ yewk-leh-nee-jee
  (with Turkish sounds, not exact English sounds)

Important vowels:

• ü = a front rounded vowel, somewhat like the u in some pronunciations of French tu or German ü
• ı = a vowel that does not exist in standard English; it is like a relaxed, unrounded sound somewhat near the vowel in roses for some speakers, but farther back

Also:

• c in Turkish is pronounced like English j in jam
• so -ci in yüklenici sounds like -ji

Usually yüklenici means contractor, undertaker, or the party carrying out the work/contract, depending on context.

In construction, legal, and tender documents, yüklenici very often means contractor.
So in a sentence like this, that is the most natural interpretation.

Yes.

Turkish often omits the subject if it is clear from context.
Since sundu already means he/she/it submitted, the subject can be left unstated.

So:

• Yüklenici iş programını sundu. = explicitly says the contractor
• İş programını sundu. = He/She submitted the work schedule, with the subject understood from context

Including yüklenici makes the subject explicit.