صديقتي بعتتلي دعوة عالحفلة، وقلتلا اني رح اجي.

صديقتي means my female friend.

• صديقة = a female friend
• -ي = my

So the -ي is a possessive suffix.
Also, this tells you the friend is female — not the speaker.

Compare:

• صديقتي = my female friend
• صديقي = my male friend

Because it has a possessive suffix, it is already definite, so you do not add الـ.

Because the subject is صديقتي, which is feminine.

بعتتلي can be broken down like this:

• بعتت = she sent
• لي = to me

So the whole thing means she sent me.

If the subject were masculine, you would usually get:

• بعتلي = he sent me

In the past tense, the feminine singular often has an extra -ت compared with the masculine form.

-لي means to me.

It is a pronoun suffix attached directly to the verb. This is very common in Levantine Arabic.

So:

• بعتتلي = she sent to me / she sent me
• قاللي = he told me
• كتبلي = he wrote to me

English usually uses a separate word like me or to me, but Arabic often attaches it to the verb.

Because here it means an invitation, not the invitation.

• دعوة = an invitation
• الدعوة = the invitation

In spoken Levantine, nouns are often left bare like this for the indefinite meaning. Also, unlike Standard Arabic, colloquial Arabic does not use case endings or tanwīn in normal speech.

It is really a spoken contraction of:

• على الحفلة → عالحفلة

So:

• عَـ is a shortened colloquial form of على
• الحفلة = the party

Together, عالحفلة means to the party or for the party, depending on context.
In this sentence, دعوة عالحفلة means an invitation to the party.

This kind of contraction is extremely common in Levantine speech.

Because قلتلا is basically:

• قلت = I said
• لَ / لـ + ها = to her

So literally it is closer to I said to her.

In Arabic, the verb قال often uses لـ with the person you are speaking to:

• قلتله = I told him
• قلتلها / قلتلا = I told her

So even though English says I told her, Arabic structures it more like I said to her.

That is just an informal Levantine spelling choice.

You may see:

• قلتلها
• قلتلها
• قلتلا

They all represent colloquial pronunciation, where لها often gets reduced in fast speech.

So قلتلا is a very normal informal way to write I told her in dialect.

Here اني means something like that I or an emphasized I.

In this sentence:

• وقلتلا اني رح اجي = and I told her that I would come

In everyday Levantine, this word is often optional. Many speakers would also say:

• وقلتلا رح اجي

That still sounds natural.

You may also see it written as إني or أني, depending on spelling habits.

رح is a future marker. It usually means will or going to.

So:

• رح اجي = I will come / I’m going to come

This is one of the most common ways to talk about the future in Levantine.

Depending on the region, you may also hear حـ as a future marker, but رح is very common and easy to recognize.

اجي is the I form of the verb to come in the imperfect/present-type stem.

So:

• اجي = I come / I come in certain contexts
• رح اجي = I will come

In Levantine, the verb to come is based on إجا / يجي.
Spelling can vary a bit in dialect writing, so you may also see forms that look slightly different, but رح اجي is a normal colloquial way to say I’ll come.

No, not completely.

This sentence starts with the subject:

• صديقتي بعتتلي دعوة...

That is very natural when the speaker wants to make my friend the topic.

But Levantine also allows other orders, depending on focus and style. For example, a verb-first order can also be possible in conversation.

Also, the second clause could be slightly shorter:

• وقلتلا رح اجي

So the exact order is flexible, but the version you were given sounds very natural and conversational.

A rough pronunciation would be:

ṣadīʔti baʿtatli daʿwe ʿal-ḥafle, w-ʔeltla enni raḥ eجي

More naturally in simple transliteration:

sadi2ti ba3tatli da3we 3al-hafle, w 2eltla enni rah eجي

A few notes:

• ق in صديقتي is often pronounced as a glottal stop in many urban Levantine accents.
• حفلة is often pronounced ḥafle.
• على + الـ becomes عالـ in speech.

Dialect spelling is not fully standardized, so you may see slightly different written forms of the same sentence.