You don't have to ask for my permission. 你不需要得到我的允許。
Why didn't you just ask me for the money? 你為什么沒有向我借錢?
She didn't really ask for you, she asked for me. 她找的其實不是你,而是我。
I need to ask for some help here. 我得找個人來幫幫忙了。
You name it. What can I do for you? 說說看,我能不能幫到你?