المتدرب سجل في الكورس المسائي وماغابش عنه.

A rough pronunciation is:

el-motadarrib saggal fil-kors el-masaayi wi ma-ghaabsh ʿanno

A few helpful notes:

• ج in Egyptian Arabic is usually pronounced like g in go
• سجل here is understood as سجّل = saggal with a doubled g sound, even if the shadda is not written
• و is usually pronounced wi or we in connected speech
• عنه is pronounced roughly ʿanno

Here سجل في means registered in, signed up for, or enrolled in.

So:

• سجل = he registered / signed up
• في الكورس = in the course

Even though English often says register for a course, Egyptian Arabic commonly uses سجل في.

Because in Egyptian Arabic, the verb سجّل commonly takes في when talking about enrolling in something.

So you say:

• سجل في الكورس = he enrolled in the course

This is just how the verb is normally used in this context. It may feel different from English, but it is very natural in Arabic.

الكورس is a very common borrowed word from English course.

In Egyptian Arabic, borrowed words are very normal in everyday speech. So الكورس sounds natural and conversational.

Depending on context, more formal alternatives could include things like:

• الدورة = course / training الدورة
• المقرر = course, subject, syllabus item

But in everyday Egyptian, الكورس is extremely common.

Because adjectives normally come after the noun in Arabic.

So:

• الكورس = the course
• المسائي = evening

Together:

• الكورس المسائي = the evening course

This is the normal Arabic word order: noun + adjective.

Because in Arabic, adjectives agree with the noun in definiteness.

So if the noun is definite:

• الكورس = the course

then the adjective also has to be definite:

• المسائي = the evening/evening one

That gives:

• الكورس المسائي = the evening course

If the noun were indefinite, the adjective would also be indefinite.

المسائي means evening or held in the evening.

So الكورس المسائي means:

• the evening course
• the course that takes place in the evening

It is an adjective describing the course.

ماغابش is the Egyptian way of saying he didn’t miss or he wasn’t absent.

It is made from:

• ما ... ش = the Egyptian negation pattern
• غاب = he was absent / he missed

So:

• غاب = he was absent
• ما غابش = he was not absent / he didn’t miss

This ما...ش pattern is one of the most important negation patterns in Egyptian Arabic.

It can suggest both, depending on context.

Literally, غاب means to be absent.

So:

• غاب عن الدرس = he was absent from the lesson

But in natural English, this is often translated as:

• he missed the lesson
• he didn’t attend the lesson

In your sentence, ماغابش عنه means something like:

• he wasn’t absent from it
• he didn’t miss it
• he attended it regularly

عنه is:

• عن = from / about
• ـه = him / it

So عنه literally means from him/it or about him/it, depending on context.

Here it refers back to الكورس, so it means:

• from it

Because غاب often goes with عن, the phrase غاب عن means to be absent from.

So:

• ماغابش عنه = he wasn’t absent from it / he didn’t miss it

Because الكورس is treated as a masculine noun in Arabic.

So the pronoun attached to عن is masculine:

• عنه = from it / from him

If the noun were feminine, you would use:

• عنها = from it / from her

For example, if you used الدورة instead of الكورس, you would say:

• ما غابش عنها

Because Arabic does not need to repeat the subject when it is already clear.

In this sentence:

• المتدرب = the trainee

Then later:

• ماغابش عنه = he didn’t miss it

The he is already understood from the verb form and the context, so repeating the subject would usually be unnecessary.

English often repeats subjects more than Arabic does.

The و simply means and.

It is attached directly to the next word in Arabic writing, so:

• و + ماغابش = and he didn’t miss

This is completely normal. Arabic frequently attaches short words like و to the following word.

It is mainly Egyptian Arabic, or at least strongly Egyptian-flavored.

The clearest signs are:

• ما...ش negation in ماغابش
• the everyday borrowed word الكورس

A more Standard Arabic version might be something like:

المتدرب سجّل في الدورة المسائية ولم يغب عنها

So the original sentence sounds natural in everyday Egyptian speech, while the Standard version sounds more formal.