المقاول بيحفر في الارضية.

A common Egyptian-style pronunciation is:

el-moʔāwel biyiḥfar fil-arḍiyya

A few helpful notes:

• المقاول → el-moʔāwel
• بيحفر → biyiḥfar or beyiḥfer depending on speaker
• في الارضية is often said smoothly as fil-arḍiyya
• ح is a stronger, breathier sound than English h
• ʔ represents a glottal stop, like the little break in uh-oh

You may hear small vowel differences from one speaker to another, but this is a good practical pronunciation.

In Egyptian Arabic, bi- is a very common prefix for the imperfective verb form.

With a verb like يحفر, adding bi- gives بيحفر, which often means:

• he digs
• he is digging
• he digs regularly

So in this sentence, بيحفر is the normal Egyptian way to express a present action.

Because Arabic does not need an extra verb like English is in this kind of sentence.

In English, you say:

• The contractor is digging

In Egyptian Arabic, the verb itself already carries the present meaning:

• بيحفر = digs / is digging

So you do not add a separate word for is here.

في usually means in or inside.

Here, with the verb يحفر meaning to dig, it gives the sense of digging in or into the floor/surface.

So بيحفر في الارضية suggests the digging is happening in the floor or into the flooring.

This is slightly different from making the floor a direct object.

Yes, but the meaning shifts a little.

• بيحفر في الارضية = he is digging in/into the floor
• بيحفر الارضية = he is digging the floor itself

The version with في sounds more like the action is taking place within that surface.
The version without في makes the floor more directly the thing being dug up.

Which one sounds best depends on the exact situation.

الـ is the Arabic definite article, like English the.

So:

• المقاول = the contractor
• الارضية / الأرضية = the floor / the flooring

In this sentence, both nouns are definite because the speaker is talking about a specific contractor and a specific floor.

Also, in Egyptian Arabic, الـ is usually pronounced el- or il-, not al- in everyday speech.

Yes, الأرضية can mean the floor, flooring, or floor surface.

A nuance to know:

• الأرضية often refers to the floor as a surface
• الأرض can mean the ground or sometimes the floor, depending on context
• البلاط specifically means the tiles

So الأرضية works well here, especially if the focus is on the floor surface itself.

Because in Egyptian Arabic, the letter ق is very often pronounced as a glottal stop ʔ, especially in Cairene speech.

So:

• Standard Arabic مقاول is closer to muqāwil
• Egyptian Arabic often says moʔāwel

This is a very common feature of Egyptian Arabic.
In other Arabic dialects, ق may sound like g or q instead.

Yes — in careful standard spelling, it is usually written الأرضية.

But in casual typing, texting, and informal online writing, many Arabic speakers leave out the hamza and write:

• الارضية instead of الأرضية

This is extremely common and usually does not change how the word is understood.

So:

• الأرضية = more careful spelling
• الارضية = common casual spelling

Yes, but it changes the feel a bit.

The sentence you have:

• المقاول بيحفر في الارضية

is very natural in Egyptian Arabic, where subject + verb order is common in everyday speech.

You could also say:

• بيحفر المقاول في الأرضية

That is possible, but it sounds more marked, more narrative, or more focused on the action first.

For normal spoken Egyptian, the original word order is the most natural choice.

The basic verb is:

• حفر = to dig

Related forms:

• حفر = he dug
• يحفر = he digs / he digs (basic non-past form)
• بيحفر = the common Egyptian present form in everyday speech

The root is:

• ح - ف - ر

This root has to do with digging, حفرة-type meanings, and making holes or excavations.