How do you say "can I help you" in Arabic?
I want to ask informally "can I help you" "how can I help you" or "what can I do for you?"

Thanks! شكرا

Question

How do you say "can I help you" in Arabic?
I want to ask informally "can I help you" "how can I help you" or "what can I do for you?"

Thanks! شكرا

Answer

can I help you------------
هل يمكنني مساعدتك؟ (hal yumkin-ni  musaa-'ada-tak)

"how can I help you"___________ 
كيف أستطيع مساعدتك؟  (kayfa Asta'-Dia  musaa-'ada-tak)

or "what can I do for you?________
-  ماذا يمكنني أن أفعل لك؟    (maadha yum-kin-nuni  an  af-'al   lak ?)

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answer:
yes i wish to help you.
:)

Answer

السلام عليكم
can I help you------------هل يمكنني مساعدتك؟
 "how can I help you"___________كيف أستطيع مساعدتك؟
 or "what can I do for you?________-ماذا يمكنني أن أفعل لك؟

Answer

هل يمكنني مساعدتك؟
كيف يمكنني ان اساعدك؟
هل تحتاج مساعدة؟

Answer

No, actually i am learning English.So, i need you to improve my English skills.

Answer

كيف استطيع ان اساعدك 
and if you want slang اي خدمة