يبشر صديقي المكون عند الطاولة.

يبشر is an imperfect verb, 3rd person masculine singular: he announces / he gives good news / he informs.

A likely fully vocalized form is يُبَشِّرُ (yubashshiru), from Form II بشّر.

A few useful points:

• The initial يـ often signals he in the imperfect.
• Form II often has a causative or intensive sense.
• With بشّر, the person receiving the news can be the direct object.

So structurally, يبشر by itself can already mean he gives good news.

Yes. That is very normal in MSA.

Arabic often uses verb–subject–object order, especially in straightforward narration. So beginning with يبشر is not unusual at all.

Compare:

• يبشر صديقي ... = verb-first structure
• صديقي يبشر ... = subject-first structure

Both can be possible, but they feel slightly different in emphasis. Starting with the verb is one of the most common patterns in MSA.

This is one of the most important questions, because this sentence is ambiguous without vowels and context.

Two possibilities are common:

• صديقي is the subject:
  My friend announces ...
• The subject is an implied he, and صديقي is the object:
  He announces to my friend ...

Why is it ambiguous?

• Arabic verbs already contain subject information, so يبشر can stand on its own with an understood he.
• صديقي does not clearly show case in normal unvowelled writing.
• Without full vocalization or context, you cannot always tell whether a following noun is the subject or object.

So a learner should not feel bad if this sentence seems unclear at first glance.

Because صديقي is:

• صديق = friend
• ـي = my

So:

• صديقي = my friend

This is how Arabic usually expresses possession with pronoun suffixes. Instead of using a separate word for my, Arabic often attaches the pronoun directly to the noun.

Examples:

• كتابي = my book
• بيتي = my house
• صديقي = my friend

Also, once a noun has a possessive suffix, it is already definite.

Because Arabic does not always use a preposition where English does.

With the verb بشّر, the person who receives the news is often a direct object, not something introduced by to.

So Arabic can say, structurally:

• He gave-good-news my-friend ...

where English would naturally say:

• He gave good news to my friend ...

This is a normal difference between the two languages. English often needs to; Arabic often does not.

Because المكون is also ambiguous in unvowelled Arabic.

Depending on context and vocalization, it could represent different words, such as:

• المُكَوِّن = the component / the constituent / the forming element
• المُكَوَّن = the formed / the constituted

So a learner may look at المكون and wonder:

• Is it a noun?
• Is it an adjective?
• Is it active or passive in meaning?

That is a very normal reaction. Arabic writing often leaves short vowels unwritten, so you sometimes need context to know which word is meant.

Because it is definite.

The prefix الـ is the Arabic definite article, usually equivalent to the.

So:

• مكون = a component / a constituent / formed / constituting
• المكون = the component / the constituent / the formed / the constituting

There is another important possibility too:

If المكون is functioning as an adjective describing صديقي, then it is also definite because صديقي is already definite through possession.

In Arabic, adjectives normally agree with the nouns they describe in definiteness.

عند الطاولة usually means at the table or by the table.

The preposition عند often gives a sense like:

• at
• by
• near
• in the presence of

So it is a natural choice for location near something.

Compare:

• عند الطاولة = at/by the table
• على الطاولة = on the table
• إلى الطاولة = to the table

So if the intended meaning is location near the table rather than physically on top of it, عند makes sense.

Because it means the table, not just a table.

So:

• طاولة = a table
• الطاولة = the table

This is straightforward use of the definite article. In the phrase عند الطاولة, the noun after the preposition is definite because the meaning is at the table.

Yes. In normal Arabic writing, short case endings are usually not written, and in pause they are often not pronounced either.

That matters a lot here because case endings could help show grammatical roles, especially with a sentence that is already ambiguous.

Without full vocalization, the learner cannot always tell:

• which noun is the subject
• which noun is the object
• exactly how المكون should be read

So this sentence is a good example of why context matters in Arabic. Native readers rely heavily on context to resolve this kind of ambiguity.

It is understandable as a grammar example, but many learners would feel that it sounds a bit artificial or unclear, and that reaction is reasonable.

Why?

• المكون is somewhat technical or ambiguous.
• The sentence lacks enough context to clearly show who is doing what.
• Unvowelled Arabic makes both صديقي and المكون harder to interpret here.

So if this sentence feels less natural than everyday Arabic, that does not mean you are missing something obvious. It may simply be a teaching sentence designed to illustrate structure rather than natural style.