كان في زحمة عالرصيف عند المفرق، فمشت اختي شوي وبعدين قطعت الشارع.

In Levantine Arabic, في often works like there is / there are. So:

• في زحمة = there is crowding / it’s crowded
• كان في زحمة = there was crowding / it was crowded

So كان puts the idea into the past, and في gives the existential meaning there was. It does not mean was in here.

Because this is normal spoken Levantine. In everyday speech, في is the usual way to say there is / there are.

For example:

• في ناس = there are people
• في مشكلة = there is a problem
• كان في زحمة = there was congestion / it was crowded

هناك is much more formal or bookish, and it sounds more like Modern Standard Arabic than casual Levantine conversation.

زحمة means crowding, congestion, a jam.

Depending on context, it can refer to:

• a crowd of people
• traffic congestion
• general crowdedness

Here, because the sentence says عالرصيف (on the sidewalk), it most naturally means the sidewalk was crowded.

عالرصيف is the colloquial contracted form of على الرصيف.

In spoken Levantine, على + ال often becomes عال:

• على الباب → عالباب
• على الطريق → عالطريق
• على الرصيف → عالرصيف

So this is very normal in dialect writing.

Also, because ر is a sun letter, the ل of ال is not pronounced separately. So عالرصيف is pronounced roughly like ʿar-raṣīf.

Here عند means at, by, near.

And المفرق in Levantine commonly means intersection, junction, fork in the road.

So عند المفرق means:

• at the intersection
• by the junction

This is a very common Levantine word for a road meeting point.

The فـ is a conjunction meaning so, then, and so, as a result.

So:

• فمشت = so she walked / then she walked

Arabic often attaches short conjunctions directly to the next word in writing. Here it connects the two parts of the sentence:

• there was crowding on the sidewalk at the intersection,
• so my sister walked a little...

Because verb-first word order is very common in Arabic, especially when telling a sequence of events.

So مشت اختي is a natural storytelling order:

• walked my sister
• meaning my sister walked

You could also say اختي مشت, but that puts a little more focus on my sister as the subject. In narration, verb + subject often sounds smoother and more natural.

In informal dialect writing, people often leave out the hamza in spelling. So أختي may appear as اختي.

Both mean my sister.

• More careful / standard spelling: أختي
• Casual dialect spelling: اختي

This kind of spelling variation is very common in Levantine Arabic online and in texts.

شوي means a little, a bit, for a short distance, for a short while.

In this sentence, it most likely means:

• she walked a little
• she walked a bit farther
• she walked a short distance

So it does not necessarily mean time only; it can also refer to distance or amount.

بعدين means then, after that, later.

It is very common in spoken Levantine for sequencing events:

• عملت هيك وبعدين رحت = I did that and then I went
• مشت شوي وبعدين قطعت الشارع = she walked a bit and then crossed the street

It is one of the most common words for moving a story forward.

Literally, قطعت الشارع means she cut the street.

But naturally, in Arabic, it means:

• she crossed the street

The verb قطع is commonly used for crossing streets, roads, and similar spaces. So this is a very normal expression, even though the literal image is different from English.

Because the sentence is narrating completed events in sequence:

• there was crowding
• she walked a bit
• then she crossed the street

This is exactly the kind of context where Levantine uses the past tense naturally. It is straightforward event narration.

A rough pronunciation would be:

kān fī zaḥme ʿar-raṣīf ʿind il-mafraʔ, fa-mishet ikhti shwayy w baʿdēn ʔaṭaʿit ish-shāreʿ

A few notes:

• عالرصيف sounds like ʿar-raṣīf
• بعدين is often pronounced baʿdēn
• ق in قطعت may be pronounced as ʔ in many urban Levantine accents, though pronunciation varies by region

So exact pronunciation can change depending on whether the speaker is Syrian, Lebanese, Palestinian, Jordanian, urban, rural, and so on.