Cases Song I/II (Ecclesiastical)

Case Song I/II (Ecclesiastical)
The -us -a -um…
gives -um -am -um…
of the -ī -ae -ī…
to the -ō -ae -ō…
in the -ō -ā -ō.

The -ī -ae -a…
give -ōs -ās -a…
of the -ōrum -ārum -ōrum…
to the -īs…
in the īs.