"semi-idiomatic multi verb"!! That's a mouthful!
I'm sure I have never heard of that before, but what it's called doesn't matter to me as much as how best to diagram it.
Have you seen the site that the Parser found?
It's under the paradigm shift thread.
(1) Go to Google. (2) Type in "A Key Containing Diagrams." (3) When the page comes up, look for the second entry that reads "A Key Containing Diagrams of the sentences given for analysis." Google has put on online the masters' 1901 book containing all of their answers to the exercises contained in another book (which, I believe, is also online).
The above is copied from TheParser.