|a, an||un (oon)|
|los (lohs)||las (lahs)|
|unos (oon-ohs)||unas (oon-ahs)|
Note: El is also used with feminine nouns beginning with a or ha when the accent is on the first syllable. Use the ese forms to mean that when what you are talking about is near the person you are addressing. Use the aquel forms when what you are talking about is far from both you and the person you are addressing. Esto and eso are the neuter forms of this and that. They can be used in general and abstract ways.
Word Document at: 004 Spanish Articles and Demonstratives
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