pmda wrote:Is he simply telling us that these are perfect passive participles?
They aren't. They aren't declined like participles.Non sunt. Aliter declinantur.
pmda wrote:4th declension nouns in -us are 'verbal nouns'
They aren't. Think of acus, domus, anus, manus.Non sunt. Acum, domum, anum, manum habeas.
If he used verbal nouns in Book 1, then I don't know why the word "new" was used? Perhaps "recent[ly mentioned in the text]" was meant. Are you sure that verbal nouns are used in Book 1.Si primo vero in libro sunt nomina verbales, nescio cur anglicè "nova nomina" postes dicatur? Nescio cur, nisi sensu nominum modo dicendorum latino. Esne certus?
I'm writing in Latin hoping for correction, and not because I'm confident in how I express myself. Latinè scribo ut ab omnibus corrigar, non quod confidenter me exprimam.