فتحت الدفتر وكتبت اسمي على اول صفحة بالقلم الازرق.

A broad, learner-friendly Levantine-style pronunciation would be:

fataḥt id-daftar w katabt ismi ʿa awwal ṣafḥa bil-ʾalam il-ʾazraʾ

A few useful notes:

• على is often reduced in speech to عَ
• الدفتر is often pronounced id-daftar / ed-daftar, because د is a sun letter
• exact vowels and stress can vary by country and city

Because Arabic usually drops the subject pronoun when the verb already makes it clear.

• فتحت = I opened
• كتبت = I wrote

So أنا is not necessary. You could add أنا for emphasis, but the normal sentence does not need it.

Here it marks the first person singular in the past tense.

• فتحت = I opened
• كتبت = I wrote

A male speaker and a female speaker both use the same form here.

One important detail: in unvowelled Arabic writing, فتحت and كتبت can also match other forms on paper, but in speech and context the meaning becomes clear.

Because الـ means the.

• دفتر = a notebook
• الدفتر = the notebook

This sentence is talking about a specific notebook, not just any notebook.

The standard spelling is اسمي because اسم begins with hamzat al-waṣl, which is written as a plain ا.

So:

• اسم = correct standard spelling
• اسمي = my name

You may sometimes see إسم in informal writing, but that is not the standard spelling.

Because Arabic often adds possessive endings directly to the noun.

• اسم = name
• اسمي = my name

The ending -ي means my.

This is very common in Arabic:

• كتابي = my book
• بيتي = my house
• اسمي = my name

Because you write on a page, and Arabic uses على for that idea.

So:

• على أول صفحة = on the first page

In everyday Levantine speech, على is very often shortened to عَ, so you will often hear:

عَ أول صفحة

In spoken Levantine, أول + noun is a very common way to say the first ...

So:

• أول صفحة = the first page

In more formal or textbook-style Arabic, you will often see:

• الصفحة الأولى

Both are understood, but أول صفحة sounds more natural in everyday speech.

It literally means with the pen.

The prefix بـ can show the instrument or means used to do something.

So:

• بالقلم = with the pen
• بالسكين = with the knife
• بالباص = by bus

Here بالقلم الأزرق means with the blue pen.

Because الأزرق describes القلم, and قلم is masculine.

So:

• القلم الأزرق = the blue pen

It does not describe صفحة. If you wanted to describe page, you would use a feminine form instead.

For example:

• formal Arabic: الصفحة الزرقاء
• Levantine spoken form: often الصفحة الزرقا

It is very natural and easy to understand in Levantine, but the spelling is fairly close to Standard Arabic.

A more casual Levantine-style written version might be:

فتحت الدفتر وكتبت اسمي عَ أول صفحة بالقلم الأزرق

So the main differences are usually:

• pronunciation
• shortening على to عَ
• fewer formal features

Because everyday Arabic writing normally leaves out short vowels, and spoken Levantine does not use the formal case-ending system of Standard Arabic.

So learners usually read from context.

A fully vowelled formal version would look like this:

فَتَحْتُ الدَّفْتَرَ وَكَتَبْتُ اسْمِي عَلَى أَوَّلِ صَفْحَةٍ بِالْقَلَمِ الأَزْرَقِ

But that is a formal written version, not how people normally write casual Levantine.

Literally, و means and. But in a sentence like this, it naturally gives a sequence of actions:

• I opened the notebook
• and then I wrote my name

So in context, it often feels like and then, even though the word itself is simply و.