هاروح السوق يوم الاتنين.

A simple pronunciation guide is:

harūḥ es-sūʔ yōm el-etnēn

A few notes:

• هاروح = ha-rūḥ
• السوق is usually pronounced es-sūʔ because the l of ال changes to the sound of the next letter
• يوم الاتنين = yōm el-etnēn

The last sound in سوق is a glottal stop ء, like a little catch in the throat.

هاروح means I’ll go or I’m going to go.

It comes from:

• أروح = I go
• ها- = a future marker in Egyptian Arabic

So:

• أروح = I go
• هاروح = I will go

In informal Egyptian writing, you may also see the future marker written in slightly different ways, such as ح or ها depending on the writer.

Because the verb already tells you the subject.

In هاروح, the verb form already means I will go, so أنا is optional.

You could say:

• هاروح السوق يوم الاتنين
• أنا هاروح السوق يوم الاتنين

Both mean the same thing. Adding أنا can give extra emphasis, but it is not required.

In Egyptian Arabic, verbs of motion often take the destination directly, without a separate word for to.

So:

• هاروح السوق = I’ll go to the market
• literally, it looks more like I’ll go the market

This is very normal in Egyptian Arabic with common destinations like:

• البيت = home
• الشغل = work
• السوق = the market

Because س is a sun letter.

When ال comes before a sun letter, the l sound is not pronounced separately. Instead, it blends into the next consonant.

So:

• السوق
• written with ال
• pronounced es-sūʔ or is-sūʔ

This is a very common Arabic pronunciation pattern.

Literally, it means the day of Monday or simply Monday.

In natural English, you would just translate it as:

• on Monday

In Egyptian Arabic, يوم is often used before days of the week, but it is not always necessary.

So both of these are common:

• يوم الاتنين
• الاتنين

Both can mean Monday / on Monday.

There is no separate word here for on.

Arabic often expresses time without a preposition where English uses on, in, or at.

So:

• يوم الاتنين = on Monday
• الاتنين = on Monday

This is normal. You do not need to add a separate word for on.

الاتنين here is Monday, not the number two.

A few helpful points:

• اتنين = two
• الاتنين = Monday

Days of the week in Arabic often appear with ال-, so this is normal.

Also, in Egyptian writing, Monday may be written in more than one way, such as:

• الاثنين
• الاتنين
• sometimes الإتنين

They all point to the same day, with dialect spelling differences.

Yes, this is Egyptian Arabic.

A Modern Standard Arabic version would be something like:

سأذهب إلى السوق يوم الاثنين

Main differences:

• Egyptian هاروح instead of MSA سأذهب
• Egyptian often does not use إلى before the destination in everyday speech
• Egyptian spelling and pronunciation of الاثنين are often simplified in casual writing

So the sentence you were given is natural for Egyptian spoken Arabic.

Yes. Arabic word order is flexible, and this sentence can be rearranged depending on emphasis.

For example:

• هاروح السوق يوم الاتنين = neutral
• يوم الاتنين هاروح السوق = emphasizes Monday
• السوق هاروحه يوم الاتنين = possible in some contexts, but less basic for beginners

The original sentence is a very natural everyday way to say it.

Yes, that is very common.

Both are natural:

• هاروح السوق يوم الاتنين
• هاروح السوق الاتنين

Using يوم can make the time expression feel a little fuller or clearer, but in everyday Egyptian, dropping it is completely normal.