Example 1 A: oh you are smiling now. A moment ago, you were mad. B: I have become happy already. Example 2 A: oh you are smiling now. A moment ago, you were mad. B: I have been happy already. I have a feeling that only example 1 is correct because I feel Be-verb is a state not like "become"...

I am someone who's been learning English as a second language from a very young age, through consuming A LOT of American media, as a result, I grew up to be very fluent in it, and because I pretty much learned the way a native would, I have an intrinsic understanding of how to use the language, b...