I,who()your friend,will go all out to help you.括号内的谓语动词用am还是is?

虽然这里who是指代I的,但后面强调的是your friend,who is your friend修饰 "I"的,所以用is.

am~

原因是实际主语是I，要和前面的实际主语对应~

翻译：作为你的朋友，我会全力帮助你的~

am,此处是定语从句.who是指I.

am

应该是am了

I,who(is)your friend,will go all out to help you.（你的朋友，将会尽全力的去帮助你．

当然是Is了！who 后面不接am

就像下面的句型一样：
who is my brother ?
who is my new friend ？
who is my new classmate ?