For further information the following books, among others, may be consulted: - Haber, Grundriss der technischen Elektrochemie (Munchen, 1898); Borchers and M`Millan, Electric Smelting and Refining (London, 1904); E.
The past participle of verbs in er was formerly isdo (u t u s) in most cases; at present ido serves for all verbs in er and Cr, except some ten or twelve in which the participle has retained the Latin form accented on the radical: dicho, hecho, visto, &c. It ought to be added that the past participle in normal Castilian derives its theme not from the perfect, but from the infinitive: habido, sabido, from haber, saber, not from hubo, supo.
Haber and S.
Haber and Pick (Zeit.
ConjugationC at alan, and especially modern Catalan, has greatly narrowed the domain of the 2nd conjugation in e r e; a large number of verbs of this conjugation have been treated as if they belonged to the 3rd in r e; d e b e r e makes deure, v i d e r e, veure, and alongside of haber, which answers to h a b b r e, there is a form heure which points to h a b ~ r e.