تشكر الشركة صديقي.

In the Arabic imperfect (non-past), the first letter of the verb shows person and sometimes gender.

So تَشْكُرُ can mean:

• she thanks
• you thank (depending on context)

Here, because the subject is الشركة and that noun is feminine singular, تشكر means she/it thanks — in other words, the company thanks.

So the تـ here is marking 3rd person feminine singular.

شركة is a grammatically feminine noun. One strong clue is the final ة (tāʾ marbūṭa), which very often marks feminine nouns in Arabic.

Because الشركة is feminine singular, the verb must also be feminine singular:

• تشكر الشركة = feminine verb + feminine subject

This is grammatical gender, not biological gender. A company is not female in the English sense, but the noun شركة is feminine in Arabic grammar.

Because verb-subject-object order is very common in Modern Standard Arabic.

So this sentence is structured like:

• تشكر = verb
• الشركة = subject
• صديقي = object

Arabic can also use subject-verb-object order:

• الشركة تشكر صديقي

Both are correct. The version with the verb first is especially normal in formal Arabic.

There are two main clues:

1. Verb agreement
   The verb تشكر is feminine singular, which matches الشركة.

2. Case in full grammar
   In fully vocalized Arabic, the subject would be nominative: الشركةُ.
   The object صديقي is the direct object syntactically.

In normal Arabic writing, short case vowels are usually not written, so learners often rely on agreement and context to identify the subject and object.

صديقي is made of:

• صديق = friend
• ـي = my

So صديقي means my friend.

The ـي is a possessive suffix attached directly to the noun.

Because صديقي is already definite.

In Arabic, a noun can be definite in different ways, including:

• by taking الـ: الشركة = the company
• by having a possessive ending: صديقي = my friend

So you do not add الـ to صديقي.
A noun with my / your / his / her attached is already definite.

It is the imperfect form, which usually covers present or non-past meaning.

So depending on context, it can mean things like:

• thanks
• is thanking

In this sentence, the natural translation is the simple present: thanks.

If you wanted a clear future meaning, Arabic would normally add a future marker such as سـ or سوف.

Because ش is a sun letter.

With sun letters, the ل of الـ is not pronounced separately; instead, it assimilates to the next consonant.

So:

• written: الشركة
• pronounced: ash-sharika (or ash-sharikatu with full case ending)

This is a very common pronunciation pattern in Arabic.

Yes. By itself, تشكر is ambiguous out of context. It can mean:

• she thanks
• you thank

But in this sentence, the presence of الشركة after the verb makes the intended meaning clear: it is 3rd person feminine singular, so the sense is the company thanks.

Because in normal Arabic writing, short vowels and case endings are usually omitted.

So learners often do not see forms like:

• تشكرُ
• الشركةُ

They just see:

• تشكر الشركة صديقي

Also, with a word like صديقي, the case is not visibly obvious in the basic spelling, because the noun has the attached suffix ـي.

So even though case is part of the grammar, everyday written Arabic often leaves it unstated on the page.