Indefinite Articles:

un = a una = a unos = an unas = an
↓ ↓ ↓ ↓
masculine, feminine, masculine, feminine,
singular singular plural plural

The article has to match the:
* gender (masculine or feminine)
* number (singular or plural)
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Examples:
* man = hombre → masculine
* woman = mujer → feminine
* flower = flor → feminine
* car = coche → masculine

* a man = un hombre → masculine, singular
* a woman = una mujer → feminine, singular
* some men = unos hombres → masculine, plural
* some women = unas mujeres → feminine, plural

Chart Summary:

	Criado por Niat Habtemariam aproximadamente 12 anos atrás

Spanish: Indefinite and Definite Articles, with gender and plurals