When someone says 我帮你 (I help you), does it imply they will assist you in doing something, or they will do it for you? My experiences in China suggests that when someone says


  我帮你
  Wǒ bāng nǐ
  I help you


they will not only just "help" you, but do whatever it is for you.  For example, someone might say 我帮你拿着 when they mean they will carry something for you.

Question: When someone says 我帮你, does it imply they will assist you in doing something, or they will do it for you?

I want to clarify whether my experiences are typical.
"帮" in "我帮你" is a shorter form of the verb "帮助" (help)".  "我帮你" means "I help you"


Example: 

A: "who will help me?" - "谁会帮(助)我?"

B: "I will help you" - "我会帮(助)你"


  "帮" in [我帮你 + verb phrase] can be an auxiliary verb for "help" or a function word for "for (in behalf of)". 


Example: 

"我帮你對付他 = "I help you to deal with him" or "I deal with him for you"

"我帮你拿着" = "I help you to carry it" or "I carry it for you"