التسجيل في الكورس المسائي متاح.

A natural Egyptian-style pronunciation is:

et-tasgīl fil-kōrs el-masā'i mitāḥ

A few notes:

• التسجيل → et-tasgīl
  The ل of ال is not pronounced here because ت is a sun letter.
• في الكورس is often said smoothly as fil-kōrs.
• In Egyptian Arabic, ج is usually pronounced like g in go, so tasgīl, not tasjeel.
• متاح is often pronounced mitāḥ in everyday Egyptian speech.

التسجيل is not a verb here. It is a verbal noun that means registration, sign-up, or sometimes recording, depending on context.

In this sentence, it clearly means registration.

So:

• سجّل = to register / sign up / record
• التسجيل = registration / recording

Because Arabic often uses في after nouns like registration to show what someone is registering in.

So:

• التسجيل في الكورس = registration in the course

In English, we often say registration for the course, but Arabic uses a different structure here. This is very normal.

الكورس is a loanword from English course, and it is very common in Egyptian Arabic.

So yes, Egyptians say كورس all the time, especially for:

• language courses
• training courses
• online courses

A more formal or more Arabic-sounding alternative might be:

• الدورة = course / training الدورة
  especially for a training program

But الكورس sounds very natural in Egyptian speech.

المسائي means evening or evening-time.

It is an adjective formed from مساء (evening). The ending -ي is a common way to form this kind of adjective in Arabic.

Here it describes الكورس, so:

• الكورس المسائي = the evening course

Because الكورس is:

• masculine
• singular
• definite

the adjective must match it, so we get:

• المسائي

If the noun were feminine, you would usually see:

• مسائية

Because in Arabic, adjectives match the noun they describe in definiteness.

Since the noun is definite:

• الكورس = the course

the adjective must also be definite:

• المسائي = the evening one / evening

So Arabic says:

• الكورس المسائي

not just:

• الكورس مسائي

This noun-adjective agreement is very important in Arabic.

Because Arabic often leaves out the verb to be in the present tense.

So instead of saying:

• registration in the evening course is available

Arabic simply says:

• التسجيل في الكورس المسائي متاح

This is called a nominal sentence.

In other tenses, Arabic would use a verb. For example, in the past you might use كان.

متاح is an adjective meaning:

• available
• accessible
• open

In this sentence, it means that registration is available/open.

It is masculine singular because it matches the whole subject idea:

• التسجيل في الكورس المسائي

That whole phrase is treated as a singular masculine noun phrase, so متاح is the expected form.

It is a mixed register, which is very common in Egypt.

• التسجيل sounds fairly formal or standard
• المسائي also sounds more formal/administrative
• الكورس is very colloquial and borrowed from English

So the sentence feels like something you would see in:

• an ad
• a school post
• a course announcement
• a social media page for a center or academy

That mix is completely normal in Egyptian Arabic.

Two common ways:

• التسجيل في الكورس المسائي غير متاح
  More formal: Registration for the evening course is unavailable.

• التسجيل في الكورس المسائي مش متاح
  More colloquial Egyptian: Registration for the evening course isn’t available.

Both are good; مش متاح sounds more everyday.

No, not in Egyptian Arabic.

In normal Egyptian speech, you would not pronounce formal case endings. So you just say the words as they are normally spoken:

• et-tasgīl fil-kōrs el-masā'i mitāḥ

If someone were reading in very careful Modern Standard Arabic, they might add case endings, but that is not how everyday Egyptian works.