You have your depth set to infinity (and beyond!). Set it to =1 (2 at the most) and try again.
I'll add a word of explanation -- the depth function corresponds to levels of syntactic hierarchy. Depth = 0 means that you build the construct exactly like the syntax tagging. In this particular search example, depth = 0 would never work, because any paragogic Nun would be on a verb, which means within the predicate phase, which is one level down from the clause level. So a depth =1 is required to get any hits. Increasing to depth = 2 would look into the predicate phase level and then also one level lower, but the hits will be the same for this search, since the only other place to find paragogic Nun would be inside direct speech, which is more than one level down in the hierarchy of a clause (direct speech is the complement of a speaking verb, so any paragogic Nun would be at least depth =3 below the clause level.
I hope that helps.
Oh, and the Psalms are not tagged as direct speech (unless the psalms quotes another character). But I recognize that this is arguable, so you may simply want to skip the Psalms hits in your search.
Edited by Robert Holmstedt, 03 February 2020 - 12:50 PM.
Professor, Hebrew and Northwest Semitic Languages
Dept. of Near and Middle Eastern Civilizations
The University of Toronto