Linking verbs
do not describe any direct action taken or controlled by the subject.
https://en.wikipedia.org/wiki/Linking_verb
Can "fall" be a linking verb, so that in e.g.
No-one has fell out the window
could "out the window" be a predicate adjective, rather than a prepositional phrase? The phrase may just seem like bad grammar. But it seems to have a different sense to "no-one has fallen out the window",. I think this version has more immediacy to it; that could be because it is incorrect grammar / informal, or perhaps because it redefines what has happened?