Language/Spanish/Grammar/Plural
The Plurals
In Spanish language the plurals are determined by feminine (las) and masculine (los) articles. Most of the sustantives have a singular and a plural form.
Example:
El sol / Los soles
El avión / Los aviones
La taza / Las tazas
◆Usually the sustantives that end in vowels (a,e,i,o,u) turn into plurals with an 's' added at the end.
Example:
El amigo / Los amigos
La vaca / Las vacas
◆When the last letter is an í or ú with accent, an 'es' is added.
Example:
El ají / Los ajíes
El iglú / Los iglúes
◆When the the sustantive ends in (d, l, r, z, …) -es is also added. The z transforms into a 'c'.
Example:
El leñador / Los leñadores
La actriz / Las actrices
◆Thought there are exceptions like :
El cactus / Los cactus
El tórax / Los tórax
◆There are sustantives that exist only as plurals:
Los honorarios, las facciones, las gafas, los víveres.
◆And there are sunstantives that are used only as singular:
La sed, el caos, el este, el oeste.