Hello, I'm second grade student of English, I've just started the course of descriptive grammar and I really like it. But during our analysis of verb phrases (adjunct and sentence adverbials) I came across a problem: how to create the correct tree diagram for the sentence: "I have just arrived.". I know that adjuncts have to occur as a "sister" to verb phrase... hmm, or maybe this "just" is not an adjunct in this sentence, because when we draw a phrase marker we cannot put it as a VP's sister node... What do you think about it?