the Portuguese plural ending varies (-ãos, -ães or -ões), usually denoting the archaic version of the word (which was often closer to Spanish): -ãos, as in mão/mãos (Spanish, mano(s); English, hand(s)); -ães, as in capitão/capitães (Spanish, capitán/capitanes; English, captain(s)); -ões, as in melão/melões (Spanish, melón/melones; English, melon(s)). Notable exceptions to the above rule: verão/verões (Spanish, verano(s); English, summer(s)); ancião, which allows the three plural forms: anciãos, anciães and anciões (Spanish, anciano(s); English, elder(s)). Esto me parece algo complicado, pero en verdad me llamo mucho la atención toda la información que me haz dado, en verdad son cosas que tengo que estudiar y recordar para evitar cometer erroes, es de gran ayuda estudiar como es la gramatica portuguesa y los cambios que tiene, porque es verdad, pude ser muy similar al español pero siempre tiene sus grandes diferencias, Rómulo vc é uma pessoa muito gentil e amavel ( legal cara ). Obrigado pela informacao. Um abraco.

Esqueça o meu comentário anterior, pois o italki não permite formatações especiais nos comentários, além do campo ser reduzido. Visite a página http://en.wikipedia.org/wiki/Differences_between_Spanish_and_Portuguese. Existem muitas observações sobre as diferenças entre as nossas línguas, português e espanhol. Espero ter ajudado!

"Correspondences between word endings Various word endings are consistently different in the two languages. Spanish -n corresponds to Portuguese -m when in word-final or before the letters p and b, because in Portuguese it is an orthography rule, these letters in Portuguese at syllable-final indicates only a nasalisation of the previous vowel (e.g. Spanish: jardín, algún; Portuguese: jardim, algum). In the plural, the m is replaced with an n (Spanish: jardines, algunos; Portuguese: jardins, alguns), because in these cases the m is not in word-final anymore. see the section on the vowels below. Common exceptions to the above rule concern the Spanish noun endings: -án and -ano, which normally correspond to -ão or -ã in Portuguese (Irán/Irão/Irã; Iran, hermano/irmão; brother, and huérfano/órfão; male orphan); -ana, which corresponds to -ã (hermana/irmã, sister; mañana/manhã; morning, huérfana/órfã; female orphan); -ón / -ción or -cción / -sión, which usually correspond to -ão / -ção / -são or -ssão (melón/melão, melon; opción/opção, option, or corrección/correcção, correction; pensión/pensão, pension, or admisión/admissão, admission). -on or -an, which corresponds to -ão in most monosyllables (son/são, they are; / tan/tão, as or so); Different singular word endings in Spanish (-ano, -án, -ón, and in monosyllables also -an and -on) usually correspond to just one singular word ending in Portuguese (-ão); however, the Portuguese plural ending varies (-ãos, -ães or -ões), usually denoting the archaic version of the word (which was often closer to Spanish): -ãos, as in mão/mãos (Spanish, mano(s); English, hand(s)); -ães, as in capitão/capitães (Spanish, capitán/capitanes; English, captain(s)); -ões, as in melão/melões (Spanish, melón/melones; English, melon(s)). Notable exceptions to the above rule: verão/verões (Spanish, verano(s); English, summer(s)); ancião, which allows the three plural forms: anciãos, anciães and anciões (Spanish, anciano(s); English, elder(s)). T