الانترنت كان بطيء الصبح، بس هلا صار سريع بعد ما رجعت الكهربا.

In Levantine, الانترنت is usually treated as masculine singular, so the adjectives match it as masculine:

• بطيء = slow
• سريع = fast

That is why you do not say بطيئة or سريعة here.

This is very common with many borrowed or non-human nouns in Arabic: speakers often default to masculine singular unless there is a strong reason not to.

Because they are predicate adjectives, not adjectives directly attached to a noun inside a noun phrase.

Here, the structure is basically:

• الانترنت كان بطيء = the internet was slow
• صار سريع = it became fast

In Arabic, when an adjective comes after كان or صار as the description of the subject, it usually does not take الـ.

Compare:

• الانترنت البطيء = the slow internet
  
  • here البطيء is an attributive adjective, so it matches definiteness
• الانترنت كان بطيء = the internet was slow
  
  • here بطيء is a predicate adjective, so no الـ

الصبح means the morning, and in this sentence it means in the morning.

In Levantine Arabic, time expressions often appear without a preposition where English would use in, at, or on.

So:

• الصبح = in the morning
• بالليل = at night / in the night
• اليوم = today
• بكرا = tomorrow

So الانترنت كان بطيء الصبح naturally means the internet was slow in the morning.

Almost, yes.

• الصباح is the more formal / MSA form
• الصبح is the normal colloquial Levantine form

A learner will hear الصبح much more often in everyday speech in the Levant.

Here بس means but.

So:

• ... الصبح، بس هلا ... = ... in the morning, but now ...

In Levantine, بس is extremely common and often replaces more formal words like لكن.

Be aware that بس can also mean only / just in other contexts, so the meaning depends on the sentence.

هلا means now.

It is a very common Levantine word. You may also see or hear variants such as:

• هلأ
• هلق

All of these are regional/spelling variations of the same basic word.

So:

• هلا صار سريع = now it became fast / now it’s become fast

صار literally means became.

In this sentence, it shows a change of state:

• before: the internet was slow
• now: it has become fast

So هلا صار سريع is more than just it is fast now. It specifically suggests it changed and is now fast.

This is very natural Arabic. English might translate it in different ways depending on context:

• now it became fast
• now it has become fast
• now it’s fast

All of those can fit, but صار carries the idea of change.

Here بعد ما means after.

So:

• بعد ما رجعت الكهربا = after the electricity came back

In Levantine, بعد ما + past verb is a very common way to say after doing something / after something happened.

It can sometimes feel close to once or when in English, depending on context, but after is the basic meaning here.

Because الكهربا is treated as feminine, so the verb is feminine too:

• رجعت = she/it returned
• الكهربا = the electricity

So literally this part is the electricity returned.

In Arabic, electricity is grammatically feminine, which is why the feminine verb form is used.

الكهربا is the normal colloquial Levantine form, while الكهرباء is the formal / MSA form.

So:

• formal: الكهرباء
• colloquial Levantine: الكهربا

This kind of shortening is very common in spoken Arabic. A learner should get used to seeing formal words become simpler in everyday speech.

Yes, that would also be understandable and natural.

Both patterns are possible:

• الانترنت كان بطيء الصبح
• كان الانترنت بطيء الصبح

The version in your sentence starts with الانترنت as the topic, which feels very natural in conversation: as for the internet, it was slow in the morning...

So the original word order is especially conversational and common in spoken Levantine.

Because Arabic often does not need an explicit subject pronoun when the subject is already clear from context.

Here, the subject الانترنت has already been mentioned, so صار سريع naturally means:

• it became fast
• it got fast

Arabic often leaves pronouns unstated when they are understood. This is very normal and much more common than in English.

Yes, exactly.

That is the literal Arabic wording:

• رجعت الكهربا = the electricity returned / came back

This is the normal Arabic way to talk about power coming back after an outage. In natural English, we often say:

• the electricity came back
• the power came back

So the Arabic expression is very direct and idiomatic.