Kırışıklık ile sökük birlikte kontrol edildi.

Here, ile links the two nouns and means and / together with.

So:

• kırışıklık ile sökük = the wrinkle and the tear / the wrinkle together with the tear

In Turkish, ile can also mean with, so learners often first meet it as an instrumental marker:

• kalem ile yazdı = he wrote with a pen

But when it joins two nouns like this, it often works much like and.

A shorter spoken/written form is -le/-la:

• kırışıklıkla sökük
  This is possible in form, though in this sentence ile sounds clearer and more natural.

Birlikte means together. It adds emphasis.

So the sentence does not just list two things; it highlights that they were checked jointly / at the same time.

• Kırışıklık ile sökük kontrol edildi. = The wrinkle and the tear were checked.
• Kırışıklık ile sökük birlikte kontrol edildi. = The wrinkle and the tear were checked together.

In English, this may sound slightly repetitive, but in Turkish it is perfectly natural for extra clarity or emphasis.

Kontrol edildi is the passive past form of kontrol etmek = to check / inspect.

Breakdown:

• kontrol etmek = to check
• edilmek = to be done / to be made / to be checked here, because etmek becomes passive
• edildi = was/were ...-ed

So:

• kontrol edildi = was checked / were checked

Even though kontrol is a noun of foreign origin, Turkish commonly uses it with etmek to form a verb:

• kontrol etmek = to check
• passive: kontrol edilmek = to be checked

This is a good question, because English learners expect something like were checked, clearly plural.

In Turkish, when multiple nouns are treated as a combined subject, the verb is often still in third person singular, especially when the subject is not overtly marked as plural with -ler/-lar.

So:

• Kırışıklık ile sökük birlikte kontrol edildi.

is normal and natural.

Turkish does not require plural agreement in the same way English does. Very often, a bare noun can refer to the relevant item or category without needing extra plural marking.

Because in this sentence they function as the subject of a passive clause.

In the passive, the thing affected by the action becomes the grammatical subject:

• active idea: Someone checked the wrinkle and the tear.
• passive Turkish: Kırışıklık ile sökük ... kontrol edildi.

As subjects, they appear in the basic dictionary form, with no accusative ending.

If they were the direct object in an active sentence, you might see accusative marking depending on definiteness:

• Kırışıklığı ve söküğü kontrol etti. = He/she checked the wrinkle and the tear.

But in your sentence, they are the passive subject, so no accusative is used.

Yes, that is exactly the kind of situation where Turkish often uses the passive.

The sentence focuses on what was checked, not who checked it.

That makes kontrol edildi very natural. It is similar to English sentences like:

• The item was inspected.
• The wrinkle and the tear were checked.

Turkish uses passive very often in formal, technical, procedural, and report-like language.

Yes. You could say:

• Kırışıklık ve sökük birlikte kontrol edildi.

This is also correct.

Difference in feel:

• ve = straightforward and
• ile = with / together with, sometimes slightly more connected or formal-sounding

In many sentences like this, both are possible.
Using birlikte already gives the idea of togetherness, so ve would sound perfectly natural too.

Sökük usually refers to something like:

• a tear
• an undone seam
• a ripped or unstitched spot

It comes from the idea of something having come apart, especially in fabric or stitching.

So in clothing or textile contexts, sökük is very common. Depending on context, English might translate it as:

• tear
• rip
• loose seam
• unstitched area

Kırışıklık is a noun meaning something like:

• wrinkle
• crease
• crumple mark

It comes from the verb/root related to wrinkling or becoming creased.

In textiles or clothing inspection, kırışıklık often refers to a visible wrinkle or crease defect.

So the sentence sounds like the kind of thing you might see in quality control, tailoring, garment inspection, or a written report.

Turkish normally puts the verb at the end, so kontrol edildi comes last.

The structure is:

• Kırışıklık ile sökük = the things being talked about
• birlikte = together
• kontrol edildi = were checked

So the order is very typical Turkish:

subject/topic + adverb + verb

You could move things around for emphasis, but this version is neutral and natural.

No, it would not be wrong.

You can say:

• Kırışıklık ile sökük kontrol edildi.

This still makes sense.

Adding birlikte just makes it clearer that the two were handled as a pair / in one checking step. Without it, the sentence is a little more neutral.

It sounds most natural in formal, technical, or report-style Turkish.

For example:

• inspection reports
• garment production notes
• quality-control records
• repair documentation

That is because kontrol edildi is a formal passive expression. In everyday speech, someone might say something more active and conversational, depending on context.

So yes, it is natural Turkish, but it has a somewhat documented / procedural tone.