Northern Valencian

The existence of this dialectal zone opposite to Northern Transitional Valencian is founded by a very symbolical feature for the speakers: the -e of the first person of indicative (pense 'I think', parle 'I speak'). If the criteria for the classification of Castellon's Valencian would be based only in the treatment of final -r and the phoneme /d͡ʒ/, would be necessary to circumscribe Castellon's Valencian only to the coastal zone between Benicàssim and Xilxes, since this is the area that maintains final -r (cantar 'to sing', fer 'to do', patir 'to suffer') and do not deaffricate ever /d͡ʒ/ in intervocalic position. It is believed that, even though the relevance of these two last features, the grouping of l'Alcalatén and el Pla de l'Arc with the northern sector of la Plana is a fact that must take into account the sum of other phonetic features, like the lack of contrast between /ʃ/ and /s/, the palatalisation of /t͡s/ and /d͡z/, the use of the diphthong /wi/ in cuit ('cooked') and huit ('eight') and the model of verbal conjugation.

Subdivisions:

1. Northern Zone. In this area, the phonetic features noted for the southern area of northern Valencian are generalised: elision of /d/ in the suffix -ada (entrà, becà, per entrada, becada) and normally also in the -ador suffix (llaura(d)or 'farmer', moca(d)or 'tissue'). It is general the pronunciation of /ʃ/ like [s] (calais, creis instead of calaix, creix) and the palatalisation of the affricate phonemes /t͡s/ and /d͡z/ (gots > goig, setze > setge). With punctual exceptions (Borriol i Sant Joan de Moró), the opposition of /b/ and /v/ does not exist now (betacism). In terms of verbal morphology, Northern Castellon's Valencian has a very significative feature compared to the southern area of la Plana and Northern Valencian: all final -a of General Valencian systematically change to -e, except for the imperatives (jo/ell parle 'I speak' and 's/he speaks', parlave  'I was speaking' and 's/he was speaking', parlarie 'I would speak' and 's/he would speak', parlare 'I was speaking' and 's/he was speaking', etc., instead of parla, parlava, parlaria and parlara). This morphological feature is also important to include the languages of Alcalatén and Pla de l'Arc within the northern Castellonenc and not in the northern Valencian.
2. Southern Zone.  It is the most conservative area of Castellon's Valencian and more akin to the general non-apitxat Valencian, with the following peculiarities with respect to the northern sector of la Plana: the process of confluence of the phonemes /s/ and /ʃ/ is less advanced and the same occurs with the distinction of /b/ and /v/, kept, at least, between older people and adults. The voiceless affricate phoneme /t͡s/ becomes normally palatal (gots > goig), but the phoneme /d͡z/ it is kept alveolar, often with epenthesis of [ɾ], [d͡zɾ]: dotze ('twelve'), setze ('sixteen') > dotzre, setzre. The verbal morphology is identical to Traditional General Valencian, with final -a and -e and also with the forms -am and -au of the subjunctive and the imperative of some verbs of the 2nd and 3rd conjugations (vullgam 'we want', vullgau 'you want'). From this area it is very peculiar the speech of Onda and its surroundings, with the complex mixture of dialectal features from the north and south: the devoicing of /d͡ʒ/, the betacism and the appearance of -e instead of final -a: tindrie, face (instead of tindria 'I would have' and 's/he would have', faça 'I do' and 's/he does'), like Northern Castellon's Valencian.

• Recasens i Vives, Daniel (1996) [1991], Fonètica descriptiva del català: assaig de caracterització de la pronúncia del vocalisme i el consonantisme català al segle XX, Biblioteca Filològica (in Catalan), vol. 21 (2nd ed.), Barcelona. Spain: Institut d'Estudis Catalans, ISBN 978-84-7283-312-8
• Saborit i Vilar, Josep (2009), Millorem la pronúncia (in Valencian), Acadèmia Valenciana de la Llengua
• Sanchis i Guarner, Manuel (2005), La llengua dels valencians (in Valencian) (20 ed.), Valencia: Edicions 3 i 4, ISBN 84-7502-082-8