Editing Italic languages (section)

=== Grammar ===
{{more citations needed section|section|date=January 2021|find=Grammar of Romance languages}}
In grammar there are basically three innovations shared by the Osco-Umbrian and the Latino-Faliscan languages:
*A suffix in the [[imperfect]] [[subjunctive mood|subjunctive]] ''*-sē-'' (in [[Oscan language|Oscan]] the 3rd person singular of the imperfect subjunctive ''fusíd'' and [[Latin]] ''foret'', both derivatives of ''*fusēd'').{{sfn|Vine|2017|p=786}}
*A suffix in the [[imperfect]] [[realis mood|indicative]] ''*-fā-'' (Oscan ''fufans'' 'they were', in Latin this suffix became ''-bā-'' as in ''portabāmus'' 'we carried').{{sfn|Rix|2002|p=3}}
*A suffix to derive [[gerundive]] adjectives from verbs ''*-ndo-'' (Latin ''operandam'' 'which will be built'; in Osco-Umbrian there is the additional reduction ''-nd-'' > ''-nn-'', Oscan ''úpsannam'' 'which will be built', Umbrian ''pihaner'' 'which will be purified').{{sfn|Vine|2017|pp=795–796}}

In turn, these shared innovations are one of the main arguments in favour of an Italic group, questioned by other authors.{{who|date=August 2023}}