Yedek düğme ile kumaş türü birlikte kontrol edildi.

Both are possible in Turkish, which is why this word often confuses learners.

Here, ile most naturally links two nouns:

• yedek düğme ile kumaş türü = the spare button and the fabric type

So in this sentence, it is functioning a lot like and.

However, ile literally means with, so the phrase can feel slightly ambiguous if you look at it word-for-word. If you want a clearly unambiguous and, Turkish can also use ve:

• Yedek düğme ve kumaş türü birlikte kontrol edildi.

That version is very clear.

birlikte means together.

Even though ile already connects the two nouns, birlikte adds the idea that they were checked as a pair or in the same inspection.

So:

• ile connects the items
• birlikte emphasizes together / jointly

The sentence would still be grammatical without it:

• Yedek düğme ile kumaş türü kontrol edildi.

But birlikte makes the relationship between the two items clearer.

It is the passive past form of kontrol etmek.

Breakdown:

• kontrol etmek = to check / inspect
• kontrol edilmek = to be checked
• kontrol edildi = was checked / were checked

So this is a passive structure: the sentence tells you what was checked, not who checked it.

Because this sentence is passive, not active.

Compare:

• kontrol etti = he/she checked it
• kontrol edildi = it was checked

With many compound verbs built with etmek, the passive uses edil-:

• iptal etmek → iptal edildi
• kontrol etmek → kontrol edildi

So etti would mean someone actively did the checking, while edildi means the checking happened to something.

This is normal in Turkish.

Even when more than one non-human thing is involved, Turkish often keeps the verb in the singular, especially in passive sentences.

So:

• Yedek düğme ile kumaş türü birlikte kontrol edildi.

is completely natural.

English would usually say were checked, but Turkish does not need a plural verb here.

Because this is a common Turkish noun compound.

In this pattern:

• the first noun stays plain
• the second noun takes a suffix, usually -(s)ı / -(s)i / -(s)u / -(s)ü

So:

• kumaş = fabric
• tür = type
• kumaş türü = fabric type / type of fabric

This is the normal way Turkish builds this kind of phrase.

Other examples:

• araba kapısı = car door
• okul bahçesi = school garden
• kitap kapağı = book cover

Because in this passive sentence, they are not direct objects in the usual active sense.

In an active sentence, you would expect definite direct objects to take the accusative:

• Görevli yedek düğmeyi ve kumaş türünü birlikte kontrol etti.

Here:

• düğmeyi
• türünü

But in the passive sentence:

• Yedek düğme ile kumaş türü birlikte kontrol edildi.

the things being checked appear in the unmarked form, which is normal.

Yes.

ile can also appear in the shorter attached form:

• -(y)la / -(y)le

So:

• yedek düğme ile
  can become
• yedek düğmeyle

Both are correct.

So you may also see:

• Yedek düğmeyle kumaş türü birlikte kontrol edildi.

Same meaning, just a different form.

If your goal is to say a very clear and, then yes, ve is often easier for learners to understand.

Compare:

• Yedek düğme ile kumaş türü birlikte kontrol edildi.
• Yedek düğme ve kumaş türü birlikte kontrol edildi.

The second one is more obviously A and B.

The version with ile is still natural Turkish, but it can briefly look like with to an English speaker.

Yes, it is passive.

The sentence does not say who did the checking. It only says that the spare button and the fabric type were checked.

A natural active version would be:

• Görevli yedek düğmeyi ve kumaş türünü birlikte kontrol etti.

That means:

• The staff member/official checked the spare button and the fabric type together.

So:

• active = says who did it
• passive = focuses on what happened

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

The original sentence is neutral and natural:

• Yedek düğme ile kumaş türü birlikte kontrol edildi.

You could also say:

• Kumaş türü yedek düğme ile birlikte kontrol edildi.
• Yedek düğme ve kumaş türü kontrol edildi.

These versions may shift the emphasis a little, but the core meaning stays similar.

This is a very common question.

In düğme, the letter ğ is usually not pronounced like a strong consonant. Instead, it often lengthens or smooths the surrounding sounds.

So düğme sounds roughly like:

• düüme or
• düyme

depending on speaker and accent.

The important point is that ğ here is soft and does not sound like a hard g in English.