To properly answer your question, I need more context about the specific sentence you're asking about. Please provide the complete sentence in Arabic so I can analyze it and provide you with the correct grammatical analysis.
If you're asking about the general grammatical structure of the phrase "صديقي شاركني في حملة التنضيف," I can provide the following explanation:
صديقي: This is a noun phrase in the nominative case, meaning it is the subject of the sentence. It consists of the noun "صديقي" (my friend) and the possessive suffix "-ي" (my).
شارك: This is a verb in the past tense, third person singular. It means "to participate" or "to share."
ني: This is a prepositional phrase meaning "with me." It consists of the preposition "ني" (with) and the pronoun "ي" (me).
في: This is a preposition meaning "in" or "on."
حملة: This is a noun meaning "campaign" or "drive."
التنظيف: This is a noun meaning "cleaning."
Putting it all together, the complete sentence means "My friend participated with me in the cleaning campaign."
I hope this helps! Please let me know if you have any other questions.