كان صديقي يعمل هنا سابقا.

Because كان + المضارع often describes an action that was ongoing, habitual, or repeated in the past.

So:

• كان صديقي يعمل هنا سابقا = My friend used to work here / My friend was working here before
• If you used a simple past verb like عمل, it would more likely mean worked in a simpler, completed sense.

In this sentence, كان sets the time in the past, and يعمل shows the action as something that happened over a period of time or repeatedly.

Here, كان is functioning as a grammatical helper verb.

On its own, كان means was or used to be, but in this sentence it combines with يعمل to create a past-time meaning for the action.

So it is not just saying my friend was. It is helping express:

• was working
• used to work

This is a very common pattern in Arabic.

That is normal in Arabic after كان.

Arabic often uses:

• كان + present-form verb

to talk about an action in the past.

So although يعمل is formally an imperfect/present-form verb, the presence of كان shifts the meaning into the past.

This structure can correspond in English to:

• was working
• used to work

depending on context.

صديقي means my friend.

It is made of:

• صديق = friend
• ـي = my

So:

• صديقي = my friend

In this sentence, صديقي is the thing being talked about, so it is the subject of كان.

Good question. In Arabic grammar, after كان, the subject is normally in the nominative case.

Here, صديقي is the subject of كان, but because it ends with the first-person possessive suffix ـي (my), the normal case ending is not clearly heard or written in the usual way. Traditional grammar says the case marking is estimated rather than fully visible.

So for a learner, the important point is:

• صديقي = my friend
• It is the subject of كان
• Its case is nominative in grammar, even though the ending does not look like a typical -u

هنا means here.

It is an adverb of place, telling you where the action happened.

So:

• يعمل هنا = works here / was working here

It does not need a preposition in Arabic, just as English can simply say here.

سابقا means previously, formerly, or before.

It adds an extra sense that this situation belonged to an earlier time.

So even though كان already places the action in the past, سابقا strengthens the idea that this was true before, but not now.

That is why the full sentence feels like:

• My friend used to work here before
• My friend formerly worked here

In Arabic, adverbs like سابقا are often placed toward the end of the sentence, and that sounds very natural.

So:

• كان صديقي يعمل هنا سابقا

is a normal word order.

Arabic word order is somewhat flexible, so other arrangements may be possible in context, but this version is very natural and clear.

Yes, Arabic has more word-order flexibility than English, but not every order sounds equally natural.

For example, this sentence is very natural:

• كان صديقي يعمل هنا سابقا

You might also encounter variations depending on emphasis, but the original order is a good standard model for learners.

In general:

• كان
• then the subject
• then the verb phrase
• then adverbs like هنا and سابقا

is a very safe pattern.

From a learner’s point of view, both are important, but they do different jobs:

• كان gives the sentence its past-time framework
• يعمل expresses the action itself: to work

So the actual action is working, but كان is what makes it past and ongoing/habitual.

That is why the combination as a whole gives the meaning.

A fully vocalized version would be:

كَانَ صَدِيقِي يَعْمَلُ هُنَا سَابِقًا

This helps show the grammar more clearly:

• كَانَ = kāna
• صَدِيقِي = ṣadīqī
• يَعْمَلُ = yaʿmalu
• هُنَا = hunā
• سَابِقًا = sābiqan

In normal everyday writing, these short vowels are usually omitted.

A simple pronunciation guide is:

kāna ṣadīqī yaʿmalu hunā sābiqan

A few notes:

• ṣ in ṣadīqī is an emphatic s
• ʿ in yaʿmalu represents the letter ع, a sound English does not have
• q in words like ṣadīqī represents ق, which is not the same as English k

You do not need perfect pronunciation immediately, but it helps to know these are special Arabic consonants.

It can suggest either one, depending on context, but in many cases used to work here is the most natural English translation.

Why?

Because كان + imperfect often expresses a repeated or continuing past situation, and سابقا adds the idea of formerly or before.

So the strongest overall feeling is:

• My friend used to work here

But in some contexts, was working here may also fit.

After كان, Arabic grammar usually has:

• a subject of كان
• then its predicate

In this sentence:

• صديقي is the subject of كان
• يعمل هنا سابقا is the predicate

More specifically, the predicate here is a verbal clause beginning with يعمل.

So one useful way to understand the structure is:

• كان = past framework
• صديقي = who
• يعمل هنا سابقا = what was happening / what used to be the case

Yes.

You could say:

• كان صديقي يعمل هنا

and it would already mean something like:

• My friend was working here
• My friend used to work here

Adding سابقا makes the idea of formerly / before more explicit. It helps show that this was true in the past and is no longer true now, or at least not necessarily true now.