زميلتي ما قدرت تجي التلاتا، فقررنا نخلي الموعد الجمعة.

زميلتي means my female colleague.

• زميلة = a female colleague
• زميلتي = my female colleague

The ending -ي is the possessive suffix my.
So this is literally colleague-of-mine, but in natural English: my colleague.

Because the speaker says زميلتي, we know the colleague is female.

Because this is everyday Levantine Arabic, not formal written Arabic.

In Levantine:

• ما is a very common way to negate past verbs
• قدرت means she could / she managed
• ما قدرت = she couldn’t / she wasn’t able to

The more formal equivalent would be something like لم تستطع or ما استطاعت, but that sounds much more Standard Arabic than casual Levantine conversation.

So ما قدرت is exactly the kind of thing you would expect in speech.

The -ت marks the verb as third person feminine singular in the past.

That matches زميلتي, because the colleague is female.

So:

• قدر = he could
• قدرت = she could

This is a very common pattern in Levantine past-tense verbs.

تجي is a common Levantine form meaning she comes / to come in this kind of context.

A few useful points:

• In Levantine, إجا / يجي is the common verb for come
• After قدرت (was able to), Arabic often uses an imperfect verb:
  قدرت تجي = she was able to come
• تأتي is Standard Arabic, not the usual colloquial choice

You may also hear تيجي in Levantine writing, since short vowels are often written inconsistently in informal Arabic. So تجي and تيجي can both represent colloquial pronunciation, depending on how someone chooses to spell it.

Because Arabic does not always need a separate word corresponding to English to before another verb.

In English, we say:

• she couldn’t come
• she wasn’t able to come

In Levantine, after verbs like قدر (be able to / manage to), the next verb usually comes directly:

• قدرت تجي = she could come
• ما قدرت تجي = she couldn’t come

So the idea of English to is built into the Arabic structure; it does not need a separate word here.

Here التلاتا means Tuesday in Levantine Arabic.

This is the colloquial Levantine form corresponding to Standard Arabic الثلاثاء.

A learner should notice two things:

• Levantine often uses everyday spoken forms for the days of the week
• Informal spelling often reflects pronunciation rather than formal spelling rules

So:

• Standard Arabic: الثلاثاء
• Levantine colloquial: التلاتا (or similar spellings)

This is very normal in casual writing such as messages or chats.

The فـ means something like so, then, or as a result.

So:

• زميلتي ما قدرت تجي التلاتا = my colleague couldn’t come Tuesday
• فقررنا = so we decided

It links the two parts of the sentence and shows consequence.

In natural English, you might translate it as:

• so we decided...
• then we decided...

In spoken Levantine, أن is often omitted.

So instead of a more formal structure like:

• قررنا أن...

people usually just say:

• قررنا نخلي...

That is completely natural in colloquial Arabic.

Also, using the imperfect verb after قررنا is normal here:

• قررنا نخلي الموعد الجمعة = we decided to move/set the appointment for Friday

So the sentence is following spoken Levantine grammar, not formal written grammar.

Yes, خلّى has several meanings in Levantine, and that can be confusing at first.

Depending on context, it can mean things like:

• leave
• let
• make
• keep
• set

Here, نخلي الموعد الجمعة means something like:

• make the appointment Friday
• leave the appointment for Friday
• set the appointment for Friday
• move the appointment to Friday

In this sentence, the natural meaning is that they changed the appointment so it would be on Friday.

So this is a good example of how خلّى is very flexible and context decides the meaning.

In Levantine, days of the week often appear without a preposition when they function as time expressions.

So just as English says:

• See you Friday

Levantine can say:

• الموعد الجمعة

without needing an extra word for on.

That means:

• the appointment is Friday
• the appointment is on Friday

A preposition is not necessary here. This is very natural colloquial usage.

Because Arabic verbs already show the subject.

For example:

• قدرت already tells you the subject is she
• قررنا already tells you the subject is we
• نخلي also shows we

So explicit subject pronouns are often unnecessary unless you want emphasis or contrast.

That is why the sentence can naturally say:

• ما قدرت
• فقررنا
• نخلي

without adding separate words for she or we.

It is clearly colloquial Levantine-style Arabic, especially because of forms like:

• ما قدرت
• تجي
• التلاتا
• نخلي

Speakers from other Arabic dialects would probably understand most or all of it from context, especially in casual conversation, but some words and spellings are distinctly Levantine.

If you wanted a more formal version, it would look quite different. This sentence sounds like normal spoken/chat Arabic from the Levant, not Standard Arabic.