Final answer:
The word that is 2 times more common than any other 3-letter Spanish word is 'que'. According to the reference materials provided, the words 'l' and 'll' are used almost 100% of the time in Spanish.
Step-by-step explanation:
The word that is 2 times more common than any other 3-letter Spanish word is que. According to the reference materials provided, the words 'l' and 'll' are used almost 100% of the time in Spanish. However, 'que' is used twice as often as any other 3-letter Spanish word.