3. _Devér_ has beside _dégra_ a form _déura_, evidently
influenced by the new conditional, _deuría_.
4. _Páisser_, _plazér_ have beside _págra_, _plágra_ the forms
_paisséra_, _plazéra_.
188. Strong verbs of the _-sī_ class regularly form their old
conditional on the same plan as the 3d pers. pl. of the preterit (§
183): (_dīxĕram_) díra, cf. díron; (✱_prēsĕram_) prẹira, cf. prẹiron;
(_arsĕram_) arsęra, cf. arsęron.
189. It will be noted that in all verbs, weak and strong, the old
conditional may be constructed from the 3d pers. pl. of the preterit by
changing -on to -a.