اذا نسيتي الموعد، عادي، فينا نكتبه عالدفتر.

A common pronunciation would be:

iza nsīti l-mōʿed, ʿādi, fīna niktbo ʿad-daftar.

A few notes:

• إذا = iza
• نسيتي = nsīti
• الموعد is often pronounced l-mōʿed in connected speech
• عادي = ʿādi
• فينا = fīna
• نكتبه = niktbo / nəktbo depending on the speaker
• عالدفتر comes from على الدفتر, and is pronounced roughly ʿad-daftar

You do not need to imitate every tiny sound perfectly at first; the main thing is to recognize the chunks.

Because the sentence is addressing a female singular you.

In Levantine past tense:

• نسيت = you forgot to a male, or I forgot depending on context/pronunciation
• نسيتي = you forgot to a female

So:

• to a woman/girl: إذا نسيتي الموعد...
• to a man/boy: إذا نسيت الموعد...

That final -ي is the feminine you marker here.

This is very common in Arabic.

After إذا, Arabic often uses a past-form verb to talk about a future or general condition. So إذا نسيتي does not have to mean only if you forgot in the English past sense. In context, it means:

• if you forget
• if you happen to forget

So the structure is normal Arabic, even if it feels strange from an English point of view.

الموعد means the appointment / the meeting time / the date, depending on context.

It has الـ because it is definite: both speakers already know which appointment is being talked about.

So:

• موعد = an appointment / a time
• الموعد = the appointment / the specific appointment

In this sentence, the speaker means a particular appointment that both people have in mind.

Yes, literally عادي means normal / ordinary, but in conversation it very often means:

• it’s okay
• no problem
• that’s fine
• not a big deal

So here عادي is a reassuring comment between the two parts of the sentence:

• If you forget the appointment, it’s okay, we can write it in the notebook.

This is a very common colloquial use of عادي in Levantine.

Here فينا means we can or it’s possible for us to.

So:

• فينا نكتبه = we can write it

This is a very common Levantine way to express ability or possibility:

• فيني = I can
• فيك = you can
• فيه = he/it can
• فينا = we can

So فينا is not a separate future marker or anything like that; it is the part that gives the meaning of can.

Because -ه at the end means it.

So:

• نكتب = we write
• نكتبه = we write it

Since الموعد was already mentioned earlier, Arabic naturally uses the object pronoun -ه to refer back to it.

That makes the sentence smoother and more natural, just like English often says:

• If you forget the appointment, it’s okay, we can write it down.

instead of repeating the appointment again.

عالدفتر is the colloquial contracted form of على الدفتر.

So:

• على = on
• الدفتر = the notebook
• على الدفتر → عالدفتر in everyday speech/writing

This kind of contraction is very common in Levantine.

Also, because دفتر starts with د, which is a sun letter, the l of الـ is not pronounced. So الدفتر is said more like:

• ad-daftar

That is why عالدفتر sounds like ʿad-daftar.

Literally, على الدفتر is on the notebook, but in natural English the idea is often better translated as:

• in the notebook
• in the planner
• write it down in the notebook

Arabic often uses على in places where English may prefer in or down in, especially when talking about writing things.

So the natural meaning here is simply that the appointment can be written down in the notebook.

Good practical pattern to know.

To a man

اذا نسيت الموعد، عادي، فينا نكتبه عالدفتر.

To a woman

اذا نسيتي الموعد، عادي، فينا نكتبه عالدفتر.

To a group

A common form would be: اذا نسيتوا الموعد، عادي، فينا نكتبه عالدفتر.

So the main change is in the verb نسي:

• نسيت = you forgot / if you forget (masculine singular)
• نسيتي = you forgot / if you forget (feminine singular)
• نسيتوا = you forgot / if you forget (plural)

The rest of the sentence can stay the same.

Because in Arabic, the verb to be is usually not expressed in the present tense.

So Arabic can simply say:

• عادي

and the meaning is:

• it’s okay
• that’s fine
• it is normal

This is very normal Arabic grammar. English needs it is, but Arabic usually does not in present-time statements like this.