Ben bugün ders çalışacaktım, hâlbuki komşular çok gürültü yaptı.

çalışacaktım breaks down as:

• çalış- = study / work
• -acak = future
• -tı = past
• -m = I

So çalışacaktım means I was going to study or I was supposed to study.

This is often called the future in the past. It usually expresses a plan, intention, or expectation that existed earlier. In this sentence, it strongly suggests that the plan was interrupted or did not happen.

Also, -acak appears instead of -ecek because of vowel harmony: the last vowel in çalış- is ı, so the suffix takes the a form.

Because Turkish often allows pronouns to be dropped, but they can also be included for emphasis, contrast, or clarity.

So:

• Bugün ders çalışacaktım = I was going to study today
• Ben bugün ders çalışacaktım = I was going to study today

Here, ben may help set up a contrast with komşular in the second clause: I had one plan, but the neighbors caused a problem.

Because çalışmak by itself can mean either to work or to study.

Adding ders makes the meaning clearly to study lessons / to do schoolwork / to study.

So:

• çalışmak = work / study
• ders çalışmak = study

This is a very common Turkish expression. It sounds natural in exactly the same way English says study even though the literal pieces are closer to work on lessons.

Yes. In this sentence, ders removes the ambiguity.

Without ders, Bugün çalışacaktım could mean:

• I was going to work today, or
• I was going to study today

With ders, the meaning is clearly study.

Yes, Turkish word order is more flexible than English, but the verb usually stays at the end.

This version is natural and straightforward:

• Ben bugün ders çalışacaktım.

It presents:

• ben = subject
• bugün = time
• ders = object-like element in the expression ders çalışmak
• çalışacaktım = verb

Other orders are possible for emphasis, such as:

• Bugün ben ders çalışacaktım
• Ders çalışacaktım bugün

But the original sentence sounds neutral and natural.

hâlbuki introduces a strong contrast between expectation and reality. Depending on context, it can feel like:

• however
• whereas
• but actually
• and yet

In this sentence, it shows that the first clause sets up an expectation, and the second clause goes against it:

• I was going to study today; however, the neighbors made a lot of noise.

Compared with ama:

• ama = plain, everyday but
• hâlbuki = stronger contrast, often a little more pointed or literary

You could replace it with ama, but the nuance would be a bit simpler and less emphatic.

The â is part of a more careful or traditional spelling style in some Turkish words. In practice, you will often also see halbuki written without the circumflex.

For learners, the important thing is:

• both refer to the same word
• the meaning is the same
• in everyday writing, the circumflex is often omitted

So if you see hâlbuki or halbuki, do not treat them as different words.

Yes. gürültü yapmak is a normal Turkish expression meaning to make noise.

So:

• gürültü = noise
• yapmak = to do / make
• çok gürültü yapmak = to make a lot of noise

This works much like English make noise.

A few related possibilities are:

• Komşular çok gürültü yaptı = The neighbors made a lot of noise
• Komşular çok gürültülüydü = The neighbors were very noisy
• Komşular gürültü çıkarıyordu = The neighbors were making noise

The original sentence focuses on the action of making noise.

Because in Turkish, when the plural subject is already stated, the verb is often left in the 3rd person singular form.

So both of these are possible:

• Komşular çok gürültü yaptı
• Komşular çok gürültü yaptılar

The first is very natural because komşular already shows that the subject is plural. Turkish does not require plural agreement as strictly as English does in this situation.

So this is normal, not a mistake.

Because neither one is being treated as a specific definite object here.

1. ders çalışmak is a fixed expression.
   ders is used in a general sense, so it stays bare.

   • ders çalışmak = to study
   • o dersi çalışmak = to study that specific lesson

2. çok gürültü yapmak also uses an indefinite object:

   • gürültü yapmak = make noise
   • çok gürültü yapmak = make a lot of noise

In Turkish, indefinite objects often appear without the accusative.

Not by itself, absolutely. On its own, çalışacaktım mainly tells you there was a plan or intention.

But in this full sentence, the contrast with hâlbuki komşular çok gürültü yaptı strongly suggests that the plan was prevented or spoiled.

So the natural interpretation is:

• I was going to study today, but the neighbors made a lot of noise.

If you wanted to say it more explicitly, you could say something like:

• Ben bugün ders çalışacaktım ama çalışamadım.
• Ben bugün ders çalışacaktım, fakat komşular yüzünden çalışamadım.

Those make the failure to study completely clear.

yaptı is the simple past, so it presents the neighbors’ noise as a completed fact:

• komşular çok gürültü yaptı = the neighbors made a lot of noise

If you said yapıyordu, the focus would shift to an ongoing background action:

• komşular çok gürültü yapıyordu = the neighbors were making a lot of noise

Both can work, but they feel slightly different:

• yaptı = reports the event as a whole
• yapıyordu = zooms in on the action while it was happening

In the original sentence, yaptı is a simple, natural way to state the reason the studying plan was disrupted.