الجهاز على الطاولة.

Because this is a nominal sentence in Arabic, and in the present tense Arabic usually does not use a separate word for is / am / are.

So:

• الجهاز على الطاولة = The device is on the table

There is no present-tense copula in normal Arabic sentences like this.

If you wanted a past meaning, Arabic would usually add كان:

• كان الجهاز على الطاولة = The device was on the table

So the absence of is is completely normal in Modern Standard Arabic.

It is a nominal sentence (جملة اسمية), meaning a sentence that begins with a noun.

It has two main parts:

• الجهاز = the subject/topic
• على الطاولة = the predicate, specifically a prepositional phrase

So the structure is:

• noun + prepositional phrase

This is a very common Arabic pattern for expressing location:

• الكتاب على المكتب = The book is on the desk
• الولد في البيت = The boy is in the house

Because الـ is the Arabic definite article, meaning the.

So:

• الجهاز = the device
• الطاولة = the table

Arabic attaches the directly to the noun as a prefix.

Compare:

• جهاز = a device / device

• الجهاز = the device

• طاولة = a table / table
• الطاولة = the table

So both nouns are definite here, just like in the English sentence the device is on the table.

Because ط is a sun letter (حرف شمسي).

When الـ comes before a sun letter, the l sound of al- is assimilated to the next consonant in pronunciation. The spelling stays the same, but the pronunciation changes.

So:

• Written: الطاولة
• Pronounced: aṭ-ṭāwila

You still write ال, but you do not clearly pronounce the l.

This happens with all sun letters, such as:

• الشمس → ash-shams
• النور → an-nūr
• الطاولة → aṭ-ṭāwila

على means on or on top of.

So:

• على الطاولة = on the table

It is a preposition. Arabic uses prepositions much like English does, although the exact choice may differ from one language to another.

Here, على is the natural choice because the device is located on the table, not inside it or under it.

For comparison:

• على الطاولة = on the table
• في الطاولة = in the table, which usually would not make sense
• تحت الطاولة = under the table

In fully vocalized MSA, it would typically be:

• الجهازُ على الطاولةِ

More explicitly:

• الجهازُ = nominative
• على الطاولةِ = after a preposition, the noun is in the genitive

So:

• الجهازُ ends with ـُ because it is the subject/topic of the nominal sentence
• الطاولةِ ends with ـِ because it comes after the preposition على

However, in normal writing and in pause, these short vowels are often not written or not pronounced fully, so you often just see:

• الجهاز على الطاولة

Because in Arabic, a noun after a preposition must be in the genitive case (مجرور).

Since على is a preposition, the following noun takes genitive marking:

• على الطاولةِ

This is a very important rule in Arabic grammar.

Other examples:

• في البيتِ = in the house
• تحت السريرِ = under the bed
• مع الطالبِ = with the student

So whenever you see a preposition like على, you should expect the next noun to be genitive.

Yes, but the usual neutral order here is:

• الجهاز على الطاولة

This presents the device first, then tells you where it is.

Arabic can also place the prepositional phrase first for emphasis or style:

• على الطاولةِ الجهازُ

This can sound more marked or literary, depending on context. It may suggest something like As for the table, the device is on it or emphasize the location.

For a learner, the safest and most natural pattern is:

• subject + prepositional phrase

So الجهاز على الطاولة is the best basic form to learn first.

Because Arabic does not need a dummy pronoun here.

English says:

• The device is on the table

Arabic simply puts the noun and the location phrase together:

• الجهاز على الطاولة

The relationship is on is understood without adding a separate pronoun or verb in the present tense.

So Arabic is more compact here than English.

Yes, but it means something slightly different.

• الجهاز على الطاولة = The device is on the table
• هناك جهاز على الطاولة = There is a device on the table

The second sentence introduces the existence of a device. It is usually less definite in feel, even though Arabic grammar can vary with context.

So if you are talking about a specific known device, الجهاز على الطاولة is the better match.

Not always. جهاز can mean several related things, depending on context, such as:

• device
• apparatus
• machine
• system
• instrument

In everyday modern usage, it is often used for machines or electronic devices, but its range is broader than just one English word.

So in this sentence, the exact English translation depends on context, even though the grammar stays the same.

A careful MSA pronunciation would be approximately:

• al-jihāzu ʿalā aṭ-ṭāwilati

In normal pause, learners often hear something closer to:

• al-jihāz ʿalā aṭ-ṭāwila

A few pronunciation notes:

• جهاز is usually jihāz
• على has the sound ʿ at the beginning, from the letter ع
• الطاولة is pronounced aṭ-ṭāwila, not al-ṭāwila

If you are a beginner, a reasonable approximation is:

• al-ji-HAAZ ʿa-LAA aṭ-TAA-wi-la

You would remove the definite article الـ from the nouns:

• جهازٌ على طاولةٍ

In fully vocalized form:

• جهازٌ = a device
• على طاولةٍ = on a table

So:

• الجهاز على الطاولة = The device is on the table
• جهاز على طاولة = A device is on a table

In ordinary unvocalized writing, the tanwīn endings are usually not shown, but grammatically they are there in full MSA.