請問是 How dare do I? 還是 How dare I do?

兩個都"未見過"。你想表達甚麼？

假如是說：我夠膽去做 = I dare to "do" it.
假如是說反問：通常是指責別人"竟膽敢"做出壞事/惡事才會說How dare "you"...
因此不會How dare "I" 指責自己的行為的寫法。

How dare do I?------->Don't you dare do that again---indicative mood---->imperative+-interrogative and conditional---Hence correct.
How dare is incorrect---should be How should I do it?How dare I do---> a statement, not an interrogative.

How dare I do 吧

How dare I do such thing?我如何敢這樣做呢? Yip