كبست على الزر، بس ما اشتغل المكيف.

In Levantine Arabic, the subject pronoun is often left out because the verb already carries that information.

• كبست can mean I pressed
• In some contexts, it can also be understood as you pressed (masculine singular)

So Arabic often relies on context rather than always saying أنا. Here, the meaning makes it clear that it is I pressed.

Yes. كبست comes from كبس, which is a very common colloquial Levantine verb meaning to press / push, especially for buttons, switches, and keys.

For example:

• كبس الزر = press the button
• كبس على الزر = press on the button

A more formal or MSA-style verb would often be ضغط. In everyday Levantine, كبس sounds very natural.

Because in Levantine, كبس على is a very common way to say press on something.

So:

• كبست على الزر = I pressed on the button

You may also hear:

• كبست الزر

Both are possible, but كبس على is very idiomatic in spoken Arabic. In fast speech, this may sound more like كبست عالزر.

Because ز is a sun letter. When الـ comes before a sun letter, the l sound disappears and the next consonant is doubled.

So:

• الزر is pronounced roughly ez-zirr / iz-zirr
• not al-zirr

That is why على الزر in natural speech can sound like عَزِّرّ or عَ الزرّ, depending on the speaker and speed.

Here, بس means but.

So:

• كبست على الزر، بس... = I pressed the button, but...

This is a very common spoken Levantine word. In more formal Arabic, you would usually use لكن instead.

Also, بس can mean only / just in other sentences, so the exact meaning depends on context.

In Levantine, ما before a past verb is a normal way to make it negative.

• اشتغل = it worked / it started working / it turned on
• ما اشتغل = it didn’t work / it didn’t start / it didn’t turn on

So ما اشتغل المكيف means the AC did not start working after the button was pressed.

It can mean both.

With machines and appliances, اشتغل often means:

• worked
• started working
• turned on
• came on

So in this sentence, the best natural English idea is something like:

• the AC didn’t turn on or
• the AC didn’t work

Both match the Arabic well.

المكيف means the air conditioner or the AC.

In Levantine pronunciation, it is often said roughly as il-mkayyef. In a more formal pronunciation, it is closer to al-mukayyif.

A useful detail:

• م is not a sun letter
• so the l of الـ stays pronounced here

That is why it is il-mkayyef, not something with a doubled m.

Yes, absolutely. Both are natural:

• ما اشتغل المكيف
• المكيف ما اشتغل

The difference is mostly about emphasis and style:

• ما اشتغل المكيف = more verb-first, a little more narrative
• المكيف ما اشتغل = starts with the AC, so it feels more like the AC didn’t work

Both are common in speech.

A more formal version would be something like:

ضغطت على الزر، لكن المكيّف لم يعمل.

Your original sentence sounds clearly colloquial and Levantine because of things like:

• كبست
• بس
• the overall spoken word order

So it is a good everyday sentence, not a textbook-formal one.