Breakdown of إياكم نشكر على هذا الولاء الطويل.
طويلtawîl
tall / long
هذاhâdhâ
this (m)
على'ala
on / of (evidence of) / to (lie to someone) / for (difficult for someone)
كمkum
Questions & Answers about إياكم نشكر على هذا الولاء الطويل.
Why use إياكم at the beginning instead of just attaching a pronoun to make it نشكركم?
Placing the object before the verb creates emphasis or focalization, meaning "It is you that we thank." Because an attached pronoun like ـكم cannot stand alone at the beginning of a sentence, Arabic uses the base word إيا to support the suffix, forming the independent accusative pronoun إياكم.
If we didn't want to emphasize "you", how would this sentence be written?
You would move the object back to its normal position after the verb. Since it's no longer at the beginning, you drop the إيا and simply attach the suffix directly to the verb: نشكركم على هذا الولاء الطويل (We thank you for this long loyalty).
Why does the verb نشكر (we thank) use the preposition على here?
While على usually translates to "on", it is the standard preposition used with the verb شكر (to thank) to indicate what you are thanking someone for. You can think of it as thanking them "on the basis of" their action.
Why does الولاء (loyalty) need the definite article الـ after هذا?
To create the noun phrase "this loyalty", the noun following the demonstrative pronoun هذا must be definite. If you dropped the الـ and wrote هذا ولاء طويل, it would turn into a complete equational sentence meaning "This is a long loyalty," which breaks the intended structure.